diff --git a/.eslintrc.js b/.eslintrc.js
index d45cc5dd05..10494c1bd9 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -99,10 +99,6 @@ module.exports = {
                 'Windows': 'readonly'
             },
             rules: {
-                // TODO: Fix warnings and remove these rules
-                'no-redeclare': ['warn'],
-                'no-useless-escape': ['warn'],
-                'no-unused-vars': ['warn']
             },
             settings: {
                 polyfills: [
diff --git a/src/components/activitylog.js b/src/components/activitylog.js
index 976a37dda0..bc7d13696d 100644
--- a/src/components/activitylog.js
+++ b/src/components/activitylog.js
@@ -54,7 +54,7 @@ import alert from './alert';
         return html;
     }
 
-    function renderList(elem, apiClient, result, startIndex, limit) {
+    function renderList(elem, apiClient, result) {
         elem.innerHTML = result.Items.map(function (i) {
             return getEntryHtml(i, apiClient);
         }).join('');
@@ -97,11 +97,11 @@ import alert from './alert';
             }
 
             instance.items = result.Items;
-            renderList(elem, apiClient, result, startIndex, limit);
+            renderList(elem, apiClient, result);
         });
     }
 
-    function onActivityLogUpdate(e, apiClient, data) {
+    function onActivityLogUpdate(e, apiClient) {
         const options = this.options;
 
         if (options && options.serverId === apiClient.serverId()) {
diff --git a/src/components/appFooter/appFooter.js b/src/components/appFooter/appFooter.js
index 2dc396371c..3aaab8fe54 100644
--- a/src/components/appFooter/appFooter.js
+++ b/src/components/appFooter/appFooter.js
@@ -1,6 +1,6 @@
 import './appFooter.scss';
 
-function render(options) {
+function render() {
     const elem = document.createElement('div');
     elem.classList.add('appfooter');
 
@@ -10,10 +10,10 @@ function render(options) {
 }
 
 class appFooter {
-    constructor(options) {
+    constructor() {
         const self = this;
 
-        self.element = render(options);
+        self.element = render();
         self.add = function (elem) {
             self.element.appendChild(elem);
         };
@@ -33,4 +33,4 @@ class appFooter {
     }
 }
 
-export default new appFooter({});
+export default new appFooter();
diff --git a/src/components/backdrop/backdrop.js b/src/components/backdrop/backdrop.js
index c16d04015d..9403038ae6 100644
--- a/src/components/backdrop/backdrop.js
+++ b/src/components/backdrop/backdrop.js
@@ -7,7 +7,7 @@ import ServerConnections from '../ServerConnections';
 
 /* eslint-disable indent */
 
-    function enableAnimation(elem) {
+    function enableAnimation() {
         if (browser.slow) {
             return false;
         }
@@ -47,7 +47,7 @@ import ServerConnections from '../ServerConnections';
                 backdropImage.classList.add('backdropImageFadeIn');
                 parent.appendChild(backdropImage);
 
-                if (!enableAnimation(backdropImage)) {
+                if (!enableAnimation()) {
                     if (existingBackdropImage && existingBackdropImage.parentNode) {
                         existingBackdropImage.parentNode.removeChild(existingBackdropImage);
                     }
diff --git a/src/components/dialogHelper/dialogHelper.js b/src/components/dialogHelper/dialogHelper.js
index 1a374aed57..a8410fcf70 100644
--- a/src/components/dialogHelper/dialogHelper.js
+++ b/src/components/dialogHelper/dialogHelper.js
@@ -48,7 +48,7 @@ import '../../assets/css/scrollstyles.scss';
         const activeElement = document.activeElement;
         let removeScrollLockOnClose = false;
 
-        function onHashChange(e) {
+        function onHashChange() {
             const isBack = self.originalUrl === window.location.href;
 
             if (isBack || !isOpened(dlg)) {
@@ -200,7 +200,7 @@ import '../../assets/css/scrollstyles.scss';
         dlg.dialogContainer = dialogContainer;
         document.body.appendChild(dialogContainer);
 
-        return new Promise((resolve, reject) => {
+        return new Promise((resolve) => {
             new DialogHashHandler(dlg, `dlg${new Date().getTime()}`, resolve);
         });
     }
diff --git a/src/components/filtermenu/filtermenu.js b/src/components/filtermenu/filtermenu.js
index 7f1cf3dabf..b36145f193 100644
--- a/src/components/filtermenu/filtermenu.js
+++ b/src/components/filtermenu/filtermenu.js
@@ -210,7 +210,7 @@ function loadDynamicFilters(context, options) {
 }
 class FilterMenu {
     show(options) {
-        return new Promise( (resolve, reject) => {
+        return new Promise( (resolve) => {
             const dialogOptions = {
                 removeOnClose: true,
                 scrollY: false
diff --git a/src/components/focusManager.js b/src/components/focusManager.js
index b0fc188516..0b0ae06211 100644
--- a/src/components/focusManager.js
+++ b/src/components/focusManager.js
@@ -8,7 +8,7 @@ import scrollManager from './scrollManager';
         scopes.push(elem);
     }
 
-    function popScope(elem) {
+    function popScope() {
         if (scopes.length) {
             scopes.length -= 1;
         }
diff --git a/src/components/guide/guide.js b/src/components/guide/guide.js
index 460295b285..2d39183bde 100644
--- a/src/components/guide/guide.js
+++ b/src/components/guide/guide.js
@@ -1057,7 +1057,7 @@ function Guide(options) {
         }
     }
 
-    function onSeriesTimerCreated(e, apiClient, data) {
+    function onSeriesTimerCreated() {
     }
 
     function onTimerCancelled(e, apiClient, data) {
@@ -1116,7 +1116,7 @@ function Guide(options) {
         programGrid.classList.add('noRubberBanding');
     }
 
-    dom.addEventListener(programGrid, 'scroll', function (e) {
+    dom.addEventListener(programGrid, 'scroll', function () {
         onProgramGridScroll(guideContext, this, timeslotHeaders);
     }, {
         passive: true
diff --git a/src/components/homeScreenSettings/homeScreenSettings.js b/src/components/homeScreenSettings/homeScreenSettings.js
index c1823f5398..65bfca1f0a 100644
--- a/src/components/homeScreenSettings/homeScreenSettings.js
+++ b/src/components/homeScreenSettings/homeScreenSettings.js
@@ -219,7 +219,7 @@ import template from './homeScreenSettings.template.html';
         context.querySelector('.selectTVHomeScreen').value = userSettings.get('tvhome') || '';
     }
 
-    function getPerLibrarySettingsHtml(item, user, userSettings, apiClient) {
+    function getPerLibrarySettingsHtml(item, user, userSettings) {
         let html = '';
 
         let isChecked;
@@ -275,12 +275,12 @@ import template from './homeScreenSettings.template.html';
         return html;
     }
 
-    function renderPerLibrarySettings(context, user, userViews, userSettings, apiClient) {
+    function renderPerLibrarySettings(context, user, userViews) {
         const elem = context.querySelector('.perLibrarySettings');
         let html = '';
 
         for (let i = 0, length = userViews.length; i < length; i++) {
-            html += getPerLibrarySettingsHtml(userViews[i], user, userSettings, apiClient);
+            html += getPerLibrarySettingsHtml(userViews[i], user);
         }
 
         elem.innerHTML = html;
@@ -297,7 +297,7 @@ import template from './homeScreenSettings.template.html';
         Promise.all([promise1, promise2]).then(responses => {
             renderViewOrder(context, user, responses[0]);
 
-            renderPerLibrarySettings(context, user, responses[0].Items, userSettings, apiClient);
+            renderPerLibrarySettings(context, user, responses[0].Items);
 
             renderViews(context, user, responses[1]);
 
diff --git a/src/components/homesections/homesections.js b/src/components/homesections/homesections.js
index 6fc2eb7d39..e2bc3fe7cb 100644
--- a/src/components/homesections/homesections.js
+++ b/src/components/homesections/homesections.js
@@ -133,24 +133,22 @@ import ServerConnections from '../ServerConnections';
 
     function loadSection(page, apiClient, user, userSettings, userViews, allSections, index) {
         const section = allSections[index];
-        const userId = user.Id;
-
         const elem = page.querySelector('.section' + index);
 
         if (section === 'latestmedia') {
             loadRecentlyAdded(elem, apiClient, user, userViews);
         } else if (section === 'librarytiles' || section === 'smalllibrarytiles' || section === 'smalllibrarytiles-automobile' || section === 'librarytiles-automobile') {
-            loadLibraryTiles(elem, apiClient, user, userSettings, 'smallBackdrop', userViews, allSections);
+            loadLibraryTiles(elem, apiClient, user, userSettings, 'smallBackdrop', userViews);
         } else if (section === 'librarybuttons') {
             loadlibraryButtons(elem, apiClient, user, userSettings, userViews);
         } else if (section === 'resume') {
-            loadResumeVideo(elem, apiClient, userId);
+            loadResumeVideo(elem, apiClient);
         } else if (section === 'resumeaudio') {
-            loadResumeAudio(elem, apiClient, userId);
+            loadResumeAudio(elem, apiClient);
         } else if (section === 'activerecordings') {
-            loadLatestLiveTvRecordings(elem, true, apiClient, userId);
+            loadLatestLiveTvRecordings(elem, true, apiClient);
         } else if (section === 'nextup') {
-            loadNextUp(elem, apiClient, userId);
+            loadNextUp(elem, apiClient);
         } else if (section === 'onnow' || section === 'livetv') {
             return loadOnNow(elem, apiClient, user);
         } else {
@@ -335,7 +333,7 @@ import ServerConnections from '../ServerConnections';
         }
     }
 
-    export function loadLibraryTiles(elem, apiClient, user, userSettings, shape, userViews, allSections) {
+    export function loadLibraryTiles(elem, apiClient, user, userSettings, shape, userViews) {
         let html = '';
         if (userViews.length) {
             html += '<h2 class="sectionTitle sectionTitle-cards padded-left">' + globalize.translate('HeaderMyMedia') + '</h2>';
@@ -415,7 +413,7 @@ import ServerConnections from '../ServerConnections';
         });
     }
 
-    function loadResumeVideo(elem, apiClient, userId) {
+    function loadResumeVideo(elem, apiClient) {
         let html = '';
 
         html += '<h2 class="sectionTitle sectionTitle-cards padded-left">' + globalize.translate('HeaderContinueWatching') + '</h2>';
@@ -488,7 +486,7 @@ import ServerConnections from '../ServerConnections';
         });
     }
 
-    function loadResumeAudio(elem, apiClient, userId) {
+    function loadResumeAudio(elem, apiClient) {
         let html = '';
 
         html += '<h2 class="sectionTitle sectionTitle-cards padded-left">' + globalize.translate('HeaderContinueListening') + '</h2>';
@@ -688,7 +686,7 @@ import ServerConnections from '../ServerConnections';
         });
     }
 
-    function loadNextUp(elem, apiClient, userId) {
+    function loadNextUp(elem, apiClient) {
         let html = '';
 
         html += '<div class="sectionTitleContainer sectionTitleContainer-cards padded-left">';
@@ -766,7 +764,7 @@ import ServerConnections from '../ServerConnections';
         };
     }
 
-    function loadLatestLiveTvRecordings(elem, activeRecordingsOnly, apiClient, userId) {
+    function loadLatestLiveTvRecordings(elem, activeRecordingsOnly, apiClient) {
         const title = activeRecordingsOnly ?
             globalize.translate('HeaderActiveRecordings') :
             globalize.translate('HeaderLatestRecordings');
diff --git a/src/components/itemContextMenu.js b/src/components/itemContextMenu.js
index c8664512ef..eb8d89441c 100644
--- a/src/components/itemContextMenu.js
+++ b/src/components/itemContextMenu.js
@@ -359,7 +359,7 @@ import toast from './toast/toast';
                             itemId: itemId,
                             serverId: serverId,
                             title: item.Name,
-                            filename: item.Path.replace(/^.*[\\\/]/, '')
+                            filename: item.Path.replace(/^.*[\\/]/, '')
                         }]);
                         getResolveFunction(getResolveFunction(resolve, id), id)();
                     });
diff --git a/src/components/itemsrefresher.js b/src/components/itemsrefresher.js
index b5a73f5c45..5a5d93e15d 100644
--- a/src/components/itemsrefresher.js
+++ b/src/components/itemsrefresher.js
@@ -2,7 +2,7 @@ import { playbackManager } from './playback/playbackmanager';
 import serverNotifications from '../scripts/serverNotifications';
 import { Events } from 'jellyfin-apiclient';
 
-function onUserDataChanged(e, apiClient, userData) {
+function onUserDataChanged() {
     const instance = this;
 
     const eventsToMonitor = getEventsToMonitor(instance);
@@ -25,7 +25,7 @@ function getEventsToMonitor(instance) {
     return [];
 }
 
-function onTimerCreated(e, apiClient, data) {
+function onTimerCreated() {
     const instance = this;
 
     if (getEventsToMonitor(instance).indexOf('timers') !== -1) {
@@ -34,7 +34,7 @@ function onTimerCreated(e, apiClient, data) {
     }
 }
 
-function onSeriesTimerCreated(e, apiClient, data) {
+function onSeriesTimerCreated() {
     const instance = this;
     if (getEventsToMonitor(instance).indexOf('seriestimers') !== -1) {
         instance.notifyRefreshNeeded();
@@ -42,7 +42,7 @@ function onSeriesTimerCreated(e, apiClient, data) {
     }
 }
 
-function onTimerCancelled(e, apiClient, data) {
+function onTimerCancelled() {
     const instance = this;
 
     if (getEventsToMonitor(instance).indexOf('timers') !== -1) {
@@ -51,7 +51,7 @@ function onTimerCancelled(e, apiClient, data) {
     }
 }
 
-function onSeriesTimerCancelled(e, apiClient, data) {
+function onSeriesTimerCancelled() {
     const instance = this;
     if (getEventsToMonitor(instance).indexOf('seriestimers') !== -1) {
         instance.notifyRefreshNeeded();
diff --git a/src/components/listview/listview.js b/src/components/listview/listview.js
index 5ca17d137a..c7dc0be3ae 100644
--- a/src/components/listview/listview.js
+++ b/src/components/listview/listview.js
@@ -163,10 +163,6 @@ import ServerConnections from '../ServerConnections';
         return html;
     }
 
-    function getId(item) {
-        return item.Id;
-    }
-
     export function getListViewHtml(options) {
         const items = options.items;
 
@@ -183,7 +179,6 @@ import ServerConnections from '../ServerConnections';
         let outerHtml = '';
 
         const enableContentWrapper = options.enableOverview && !layoutManager.tv;
-        const containerAlbumArtistIds = (options.containerAlbumArtists || []).map(getId);
 
         for (let i = 0, length = items.length; i < length; i++) {
             const item = items[i];
diff --git a/src/components/maintabsmanager.js b/src/components/maintabsmanager.js
index 1c63b53bed..4c5c379ac4 100644
--- a/src/components/maintabsmanager.js
+++ b/src/components/maintabsmanager.js
@@ -47,7 +47,7 @@ import '../elements/emby-button/emby-button';
         return true;
     }
 
-    function configureSwipeTabs(view, tabsElem, getTabContainersFn) {
+    function configureSwipeTabs(view, tabsElem) {
         if (!browser.touch) {
             return;
         }
@@ -142,7 +142,7 @@ import '../elements/emby-button/emby-button';
 
             tabsElem = tabsContainerElem.querySelector('[is="emby-tabs"]');
 
-            configureSwipeTabs(view, tabsElem, getTabContainersFn);
+            configureSwipeTabs(view, tabsElem);
 
             tabsElem.addEventListener('beforetabchange', function (e) {
                 const tabContainers = getTabContainersFn();
diff --git a/src/components/mediainfo/mediainfo.js b/src/components/mediainfo/mediainfo.js
index 0b09c3dff3..717a297246 100644
--- a/src/components/mediainfo/mediainfo.js
+++ b/src/components/mediainfo/mediainfo.js
@@ -490,9 +490,7 @@ import '../../elements/emby-button/emby-button';
         })[0];
     }
 
-    export function getMediaInfoStats(item, options) {
-        options = options || {};
-
+    export function getMediaInfoStats(item) {
         const list = [];
 
         const mediaSource = (item.MediaSources || [])[0] || {};
diff --git a/src/components/metadataEditor/metadataEditor.js b/src/components/metadataEditor/metadataEditor.js
index b020f88e13..49c8eb886f 100644
--- a/src/components/metadataEditor/metadataEditor.js
+++ b/src/components/metadataEditor/metadataEditor.js
@@ -31,7 +31,7 @@ import template from './metadataEditor.template.html';
         return currentContext.classList.contains('dialog');
     }
 
-    function closeDialog(isSubmitted) {
+    function closeDialog() {
         if (isDialog()) {
             dialogHelper.close(currentContext);
         }
@@ -42,7 +42,7 @@ import template from './metadataEditor.template.html';
             toast(globalize.translate('MessageItemSaved'));
 
             loading.hide();
-            closeDialog(true);
+            closeDialog();
         }
 
         const apiClient = getApiClient();
@@ -298,7 +298,7 @@ import template from './metadataEditor.template.html';
         }
     }
 
-    function init(context, apiClient) {
+    function init(context) {
         context.querySelector('.externalIds').addEventListener('click', function (e) {
             const btnOpenExternalId = dom.parentWithClass(e.target, 'btnOpenExternalId');
             if (btnOpenExternalId) {
@@ -319,7 +319,7 @@ import template from './metadataEditor.template.html';
 
         bindAll(context.querySelectorAll('.btnCancel'), 'click', function (event) {
             event.preventDefault();
-            closeDialog(false);
+            closeDialog();
         });
 
         context.querySelector('.btnMore').addEventListener('click', function (e) {
@@ -328,7 +328,7 @@ import template from './metadataEditor.template.html';
             });
         });
 
-        context.querySelector('.btnHeaderSave').addEventListener('click', function (e) {
+        context.querySelector('.btnHeaderSave').addEventListener('click', function () {
             context.querySelector('.btnSave').click();
         });
 
@@ -347,7 +347,7 @@ import template from './metadataEditor.template.html';
         form.removeEventListener('submit', onSubmit);
         form.addEventListener('submit', onSubmit);
 
-        context.querySelector('#btnAddPerson').addEventListener('click', function (event, data) {
+        context.querySelector('#btnAddPerson').addEventListener('click', function () {
             editPerson(context, {}, -1);
         });
 
@@ -1026,7 +1026,7 @@ import template from './metadataEditor.template.html';
         });
     }
 
-    function show(itemId, serverId, resolve, reject) {
+    function show(itemId, serverId, resolve) {
         loading.show();
 
         const dialogOptions = {
@@ -1066,20 +1066,20 @@ import template from './metadataEditor.template.html';
 
         currentContext = dlg;
 
-        init(dlg, ServerConnections.getApiClient(serverId));
+        init(dlg);
 
         reload(dlg, itemId, serverId);
     }
 
     export default {
         show: function (itemId, serverId) {
-            return new Promise(function (resolve, reject) {
-                return show(itemId, serverId, resolve, reject);
+            return new Promise(function (resolve) {
+                return show(itemId, serverId, resolve);
             });
         },
 
         embed: function (elem, itemId, serverId) {
-            return new Promise(function (resolve, reject) {
+            return new Promise(function () {
                 loading.show();
 
                 elem.innerHTML = globalize.translateHtml(template, 'core');
@@ -1091,7 +1091,7 @@ import template from './metadataEditor.template.html';
 
                 currentContext = elem;
 
-                init(elem, ServerConnections.getApiClient(serverId));
+                init(elem);
                 reload(elem, itemId, serverId);
 
                 focusManager.autoFocus(elem);
diff --git a/src/components/metadataEditor/personEditor.js b/src/components/metadataEditor/personEditor.js
index 0911632748..51f784db4f 100644
--- a/src/components/metadataEditor/personEditor.js
+++ b/src/components/metadataEditor/personEditor.js
@@ -63,7 +63,7 @@ import template from './personEditor.template.html';
                 }
             });
 
-            dlg.querySelector('.selectPersonType').addEventListener('change', function (e) {
+            dlg.querySelector('.selectPersonType').addEventListener('change', function () {
                 if (this.value === 'Actor') {
                     dlg.querySelector('.fldRole').classList.remove('hide');
                 } else {
@@ -71,7 +71,7 @@ import template from './personEditor.template.html';
                 }
             });
 
-            dlg.querySelector('.btnCancel').addEventListener('click', function (e) {
+            dlg.querySelector('.btnCancel').addEventListener('click', function () {
                 dialogHelper.close(dlg);
             });
 
diff --git a/src/components/multiSelect/multiSelect.js b/src/components/multiSelect/multiSelect.js
index f2f359ae98..265ebfec8a 100644
--- a/src/components/multiSelect/multiSelect.js
+++ b/src/components/multiSelect/multiSelect.js
@@ -84,7 +84,7 @@ import confirm from '../confirm/confirm';
         }
     }
 
-    function onSelectionChange(e) {
+    function onSelectionChange() {
         updateItemSelection(this, this.checked);
     }
 
@@ -440,13 +440,13 @@ import confirm from '../confirm/confirm';
                     deltaY = 100;
                 }
                 if (deltaX >= 5 || deltaY >= 5) {
-                    onMouseOut(e);
+                    onMouseOut();
                 }
             }
         }
 
-        function onTouchEnd(e) {
-            onMouseOut(e);
+        function onTouchEnd() {
+            onMouseOut();
         }
 
         function onMouseDown(e) {
@@ -459,7 +459,7 @@ import confirm from '../confirm/confirm';
             touchStartTimeout = setTimeout(onTouchStartTimerFired, 550);
         }
 
-        function onMouseOut(e) {
+        function onMouseOut() {
             if (touchStartTimeout) {
                 clearTimeout(touchStartTimeout);
                 touchStartTimeout = null;
diff --git a/src/components/notifications/notifications.js b/src/components/notifications/notifications.js
index 0267c378ce..e74d5c6f05 100644
--- a/src/components/notifications/notifications.js
+++ b/src/components/notifications/notifications.js
@@ -41,7 +41,7 @@ function resetRegistration() {
 
 resetRegistration();
 
-function showPersistentNotification(title, options, timeoutMs) {
+function showPersistentNotification(title, options) {
     serviceWorkerRegistration.showNotification(title, options);
 }
 
@@ -77,7 +77,7 @@ function showNotification(options, timeoutMs, apiClient) {
     resetRegistration();
 
     if (serviceWorkerRegistration) {
-        showPersistentNotification(title, options, timeoutMs);
+        showPersistentNotification(title, options);
         return;
     }
 
@@ -219,7 +219,7 @@ Events.on(serverNotifications, 'PackageInstalling', function (e, apiClient, data
     showPackageInstallNotification(apiClient, data, 'progress');
 });
 
-Events.on(serverNotifications, 'ServerShuttingDown', function (e, apiClient, data) {
+Events.on(serverNotifications, 'ServerShuttingDown', function (e, apiClient) {
     const serverId = apiClient.serverInfo().Id;
     const notification = {
         tag: 'restart' + serverId,
@@ -228,7 +228,7 @@ Events.on(serverNotifications, 'ServerShuttingDown', function (e, apiClient, dat
     showNotification(notification, 0, apiClient);
 });
 
-Events.on(serverNotifications, 'ServerRestarting', function (e, apiClient, data) {
+Events.on(serverNotifications, 'ServerRestarting', function (e, apiClient) {
     const serverId = apiClient.serverInfo().Id;
     const notification = {
         tag: 'restart' + serverId,
diff --git a/src/components/nowPlayingBar/nowPlayingBar.js b/src/components/nowPlayingBar/nowPlayingBar.js
index da32640c76..daa2d3bf15 100644
--- a/src/components/nowPlayingBar/nowPlayingBar.js
+++ b/src/components/nowPlayingBar/nowPlayingBar.js
@@ -648,7 +648,7 @@ import { appRouter } from '../appRouter';
         }
     }
 
-    function onPlayPauseStateChanged(e) {
+    function onPlayPauseStateChanged() {
         if (!isEnabled) {
             return;
         }
@@ -682,7 +682,7 @@ import { appRouter } from '../appRouter';
         updatePlayerStateInternal(event, state, player);
     }
 
-    function onTimeUpdate(e) {
+    function onTimeUpdate() {
         if (!isEnabled) {
             return;
         }
@@ -718,7 +718,7 @@ import { appRouter } from '../appRouter';
         }
     }
 
-    function onVolumeChanged(e) {
+    function onVolumeChanged() {
         if (!isEnabled) {
             return;
         }
diff --git a/src/components/playback/brightnessosd.js b/src/components/playback/brightnessosd.js
index fe6ba2e0e2..a23fdc0b18 100644
--- a/src/components/playback/brightnessosd.js
+++ b/src/components/playback/brightnessosd.js
@@ -127,7 +127,7 @@ function releaseCurrentPlayer() {
     }
 }
 
-function onBrightnessChanged(e) {
+function onBrightnessChanged() {
     const player = this;
 
     ensureOsdElement();
diff --git a/src/components/playback/playbackmanager.js b/src/components/playback/playbackmanager.js
index 2b6c13bb1c..2673f5c841 100644
--- a/src/components/playback/playbackmanager.js
+++ b/src/components/playback/playbackmanager.js
@@ -208,7 +208,7 @@ function getMimeType(type, container) {
 }
 
 function getParam(name, url) {
-    name = name.replace(/[\[]/, '\\\[').replace(/[\]]/, '\\\]');
+    name = name.replace(/[[]/, '\\[').replace(/[\]]/, '\\]');
     const regexS = '[\\?&]' + name + '=([^&#]*)';
     const regex = new RegExp(regexS, 'i');
 
@@ -270,7 +270,7 @@ function getIntros(firstItem, apiClient, options) {
 
     return apiClient.getIntros(firstItem.Id).then(function (result) {
         return result;
-    }, function (err) {
+    }, function () {
         return Promise.resolve({
             Items: []
         });
@@ -619,7 +619,7 @@ function supportsDirectPlay(apiClient, item, mediaSource) {
                 return isHostReachable(mediaSource, apiClient);
             }
         } else if (mediaSource.Protocol === 'File') {
-            return new Promise(function (resolve, reject) {
+            return new Promise(function (resolve) {
                 // Determine if the file can be accessed directly
                 import('../../scripts/filesystem').then((filesystem) => {
                     const method = isFolderRip ?
@@ -1711,7 +1711,7 @@ class PlaybackManager {
             });
         }
 
-        function changeStreamToUrl(apiClient, player, playSessionId, streamInfo, newPositionTicks) {
+        function changeStreamToUrl(apiClient, player, playSessionId, streamInfo) {
             const playerData = getPlayerData(player);
 
             playerData.isChangingStream = true;
@@ -2037,7 +2037,7 @@ class PlaybackManager {
         // Only used internally
         self.getCurrentTicks = getCurrentTicks;
 
-        function playOther(items, options, user) {
+        function playOther(items, options) {
             const playStartIndex = options.startIndex || 0;
             const player = getPlayer(items[playStartIndex], options);
 
@@ -2048,7 +2048,7 @@ class PlaybackManager {
             return player.play(options);
         }
 
-        function playWithIntros(items, options, user) {
+        function playWithIntros(items, options) {
             let playStartIndex = options.startIndex || 0;
             let firstItem = items[playStartIndex];
 
@@ -2065,7 +2065,7 @@ class PlaybackManager {
             }
 
             if (firstItem.MediaType === 'Photo' || firstItem.MediaType === 'Book') {
-                return playOther(items, options, user);
+                return playOther(items, options);
             }
 
             const apiClient = ServerConnections.getApiClient(firstItem.ServerId);
@@ -3030,27 +3030,27 @@ class PlaybackManager {
             }
         }
 
-        function onPlaybackTimeUpdate(e) {
+        function onPlaybackTimeUpdate() {
             const player = this;
             sendProgressUpdate(player, 'timeupdate');
         }
 
-        function onPlaybackPause(e) {
+        function onPlaybackPause() {
             const player = this;
             sendProgressUpdate(player, 'pause');
         }
 
-        function onPlaybackUnpause(e) {
+        function onPlaybackUnpause() {
             const player = this;
             sendProgressUpdate(player, 'unpause');
         }
 
-        function onPlaybackVolumeChange(e) {
+        function onPlaybackVolumeChange() {
             const player = this;
             sendProgressUpdate(player, 'volumechange');
         }
 
-        function onRepeatModeChange(e) {
+        function onRepeatModeChange() {
             const player = this;
             sendProgressUpdate(player, 'repeatmodechange');
         }
@@ -3060,17 +3060,17 @@ class PlaybackManager {
             sendProgressUpdate(player, 'shufflequeuemodechange');
         }
 
-        function onPlaylistItemMove(e) {
+        function onPlaylistItemMove() {
             const player = this;
             sendProgressUpdate(player, 'playlistitemmove', true);
         }
 
-        function onPlaylistItemRemove(e) {
+        function onPlaylistItemRemove() {
             const player = this;
             sendProgressUpdate(player, 'playlistitemremove', true);
         }
 
-        function onPlaylistItemAdd(e) {
+        function onPlaylistItemAdd() {
             const player = this;
             sendProgressUpdate(player, 'playlistitemadd', true);
         }
diff --git a/src/components/playback/playbackorientation.js b/src/components/playback/playbackorientation.js
index d763726b10..66b461738d 100644
--- a/src/components/playback/playbackorientation.js
+++ b/src/components/playback/playbackorientation.js
@@ -14,7 +14,7 @@ function onOrientationChangeError(err) {
     console.error('error locking orientation: ' + err);
 }
 
-Events.on(playbackManager, 'playbackstart', function (e, player, state) {
+Events.on(playbackManager, 'playbackstart', function (e, player) {
     const isLocalVideo = player.isLocalPlayer && !player.isExternalPlayer && playbackManager.isPlayingVideo(player);
 
     if (isLocalVideo && layoutManager.mobile) {
diff --git a/src/components/playback/playerSelectionMenu.js b/src/components/playback/playerSelectionMenu.js
index 35871c1fe8..7e34ca90a3 100644
--- a/src/components/playback/playerSelectionMenu.js
+++ b/src/components/playback/playerSelectionMenu.js
@@ -301,15 +301,15 @@ Events.on(appSettings, 'change', function (e, name) {
     }
 });
 
-Events.on(playbackManager, 'pairing', function (e) {
+Events.on(playbackManager, 'pairing', function () {
     loading.show();
 });
 
-Events.on(playbackManager, 'paired', function (e) {
+Events.on(playbackManager, 'paired', function () {
     loading.hide();
 });
 
-Events.on(playbackManager, 'pairerror', function (e) {
+Events.on(playbackManager, 'pairerror', function () {
     loading.hide();
 });
 
diff --git a/src/components/playback/playqueuemanager.js b/src/components/playback/playqueuemanager.js
index fbe1ceabfe..a1ed503372 100644
--- a/src/components/playback/playqueuemanager.js
+++ b/src/components/playback/playqueuemanager.js
@@ -114,7 +114,7 @@ class PlayQueueManager {
         return this._currentPlaylistItemId;
     }
 
-    setPlaylistState(playlistItemId, playlistIndex) {
+    setPlaylistState(playlistItemId) {
         this._currentPlaylistItemId = playlistItemId;
     }
 
diff --git a/src/components/playback/volumeosd.js b/src/components/playback/volumeosd.js
index 796030f89f..6412a6e9a5 100644
--- a/src/components/playback/volumeosd.js
+++ b/src/components/playback/volumeosd.js
@@ -118,7 +118,7 @@ function releaseCurrentPlayer() {
     }
 }
 
-function onVolumeChanged(e) {
+function onVolumeChanged() {
     const player = this;
 
     ensureOsdElement();
diff --git a/src/components/playerstats/playerstats.js b/src/components/playerstats/playerstats.js
index bac81609ef..d93534db09 100644
--- a/src/components/playerstats/playerstats.js
+++ b/src/components/playerstats/playerstats.js
@@ -196,7 +196,7 @@ import ServerConnections from '../ServerConnections';
         }
     }
 
-    function getMediaSourceStats(session, player, displayPlayMethod) {
+    function getMediaSourceStats(session, player) {
         const sessionStats = [];
 
         const mediaSource = playbackManager.currentMediaSource(player) || {};
diff --git a/src/components/recordingcreator/recordingbutton.js b/src/components/recordingcreator/recordingbutton.js
index ebb27595e1..a05a44b2e5 100644
--- a/src/components/recordingcreator/recordingbutton.js
+++ b/src/components/recordingcreator/recordingbutton.js
@@ -5,7 +5,7 @@ import '../../elements/emby-button/emby-button';
 import './recordingfields.scss';
 import ServerConnections from '../ServerConnections';
 
-function onRecordingButtonClick(e) {
+function onRecordingButtonClick() {
     const item = this.item;
 
     if (item) {
diff --git a/src/components/recordingcreator/recordingeditor.js b/src/components/recordingcreator/recordingeditor.js
index c627e9e4ef..19cec8d88e 100644
--- a/src/components/recordingcreator/recordingeditor.js
+++ b/src/components/recordingcreator/recordingeditor.js
@@ -28,7 +28,7 @@ function deleteTimer(apiClient, timerId) {
     });
 }
 
-function renderTimer(context, item, apiClient) {
+function renderTimer(context, item) {
     context.querySelector('#txtPrePaddingMinutes').value = item.PrePaddingSeconds / 60;
     context.querySelector('#txtPostPaddingMinutes').value = item.PostPaddingSeconds / 60;
 
@@ -79,13 +79,13 @@ function reload(context, id) {
 
     const apiClient = ServerConnections.getApiClient(currentServerId);
     apiClient.getLiveTvTimer(id).then(function (result) {
-        renderTimer(context, result, apiClient);
+        renderTimer(context, result);
         loading.hide();
     });
 }
 
 function showEditor(itemId, serverId, options) {
-    return new Promise(function (resolve, reject) {
+    return new Promise(function (resolve) {
         recordingDeleted = false;
         currentServerId = serverId;
         loading.show();
diff --git a/src/components/recordingcreator/recordingfields.js b/src/components/recordingcreator/recordingfields.js
index ae2742d77a..7ebb2fa9ef 100644
--- a/src/components/recordingcreator/recordingfields.js
+++ b/src/components/recordingcreator/recordingfields.js
@@ -14,7 +14,7 @@ import template from './recordingfields.template.html';
 
 /*eslint prefer-const: "error"*/
 
-function loadData(parent, program, apiClient) {
+function loadData(parent, program) {
     if (program.IsSeries) {
         parent.querySelector('.recordSeriesContainer').classList.remove('hide');
     } else {
@@ -55,7 +55,7 @@ function fetchData(instance) {
         instance.TimerId = program.TimerId;
         instance.Status = program.Status;
         instance.SeriesTimerId = program.SeriesTimerId;
-        loadData(options.parent, program, apiClient);
+        loadData(options.parent, program);
     });
 }
 
@@ -119,7 +119,7 @@ class RecordingEditor {
 
     embed() {
         const self = this;
-        return new Promise(function (resolve, reject) {
+        return new Promise(function (resolve) {
             const options = self.options;
             const context = options.parent;
             context.innerHTML = globalize.translateHtml(template, 'core');
@@ -156,7 +156,7 @@ class RecordingEditor {
     }
 }
 
-function onManageRecordingClick(e) {
+function onManageRecordingClick() {
     const options = this.options;
     if (!this.TimerId || this.Status === 'Cancelled') {
         return;
@@ -172,7 +172,7 @@ function onManageRecordingClick(e) {
     });
 }
 
-function onManageSeriesRecordingClick(e) {
+function onManageSeriesRecordingClick() {
     const options = this.options;
 
     if (!this.SeriesTimerId) {
diff --git a/src/components/refreshdialog/refreshdialog.js b/src/components/refreshdialog/refreshdialog.js
index fe5756af3d..bffafa163a 100644
--- a/src/components/refreshdialog/refreshdialog.js
+++ b/src/components/refreshdialog/refreshdialog.js
@@ -155,7 +155,7 @@ class RefreshDialog {
             centerFocus(dlg.querySelector('.formDialogContent'), false, true);
         }
 
-        return new Promise(function (resolve, reject) {
+        return new Promise(function (resolve) {
             if (layoutManager.tv) {
                 centerFocus(dlg.querySelector('.formDialogContent'), false, false);
             }
diff --git a/src/components/remotecontrol/remotecontrol.js b/src/components/remotecontrol/remotecontrol.js
index d502d017e7..f38a92b293 100644
--- a/src/components/remotecontrol/remotecontrol.js
+++ b/src/components/remotecontrol/remotecontrol.js
@@ -24,7 +24,7 @@ import { appRouter } from '../appRouter';
 let showMuteButton = true;
 let showVolumeSlider = true;
 
-function showAudioMenu(context, player, button, item) {
+function showAudioMenu(context, player, button) {
     const currentIndex = playbackManager.getAudioStreamIndex(player);
     const streams = playbackManager.audioTracks(player);
     const menuItems = streams.map(function (s) {
@@ -51,7 +51,7 @@ function showAudioMenu(context, player, button, item) {
     });
 }
 
-function showSubtitleMenu(context, player, button, item) {
+function showSubtitleMenu(context, player, button) {
     const currentIndex = playbackManager.getSubtitleStreamIndex(player);
     const streams = playbackManager.subtitleTracks(player);
     const menuItems = streams.map(function (s) {
@@ -572,7 +572,7 @@ export default function () {
         }
     }
 
-    function onPlaylistUpdate(e) {
+    function onPlaylistUpdate() {
         loadPlaylist(dlg, this);
     }
 
@@ -603,7 +603,7 @@ export default function () {
         }
     }
 
-    function onPlayPauseStateChanged(e) {
+    function onPlayPauseStateChanged() {
         updatePlayPauseState(this.paused(), true);
     }
 
@@ -613,7 +613,7 @@ export default function () {
         onPlaylistUpdate();
     }
 
-    function onTimeUpdate(e) {
+    function onTimeUpdate() {
         const now = new Date().getTime();
 
         if (!(now - lastUpdateTime < 700)) {
@@ -624,7 +624,7 @@ export default function () {
         }
     }
 
-    function onVolumeChanged(e) {
+    function onVolumeChanged() {
         const player = this;
         updatePlayerVolumeState(dlg, player.isMuted(), player.getVolume());
     }
@@ -727,12 +727,12 @@ export default function () {
         });
         context.querySelector('.btnAudioTracks').addEventListener('click', function (e) {
             if (currentPlayer && lastPlayerState && lastPlayerState.NowPlayingItem) {
-                showAudioMenu(context, currentPlayer, e.target, lastPlayerState.NowPlayingItem);
+                showAudioMenu(context, currentPlayer, e.target);
             }
         });
         context.querySelector('.btnSubtitles').addEventListener('click', function (e) {
             if (currentPlayer && lastPlayerState && lastPlayerState.NowPlayingItem) {
-                showSubtitleMenu(context, currentPlayer, e.target, lastPlayerState.NowPlayingItem);
+                showSubtitleMenu(context, currentPlayer, e.target);
             }
         });
         context.querySelector('.btnStop').addEventListener('click', function () {
@@ -922,13 +922,13 @@ export default function () {
         }
     }
 
-    function onDialogClosed(e) {
+    function onDialogClosed() {
         releaseCurrentPlayer();
         Events.off(playbackManager, 'playerchange', onPlayerChange);
         lastPlayerState = null;
     }
 
-    function onShow(context, tab) {
+    function onShow(context) {
         bindToPlayer(context, playbackManager.getCurrentPlayer());
     }
 
@@ -946,7 +946,7 @@ export default function () {
     };
 
     self.onShow = function () {
-        onShow(dlg, window.location.hash);
+        onShow(dlg);
     };
 
     self.destroy = function () {
diff --git a/src/components/sanitizeFilename.js b/src/components/sanitizeFilename.js
index ffea2a0a6c..77e06d359c 100644
--- a/src/components/sanitizeFilename.js
+++ b/src/components/sanitizeFilename.js
@@ -1,12 +1,12 @@
 // TODO: Check if needed and move to external dependency
 // From https://github.com/parshap/node-sanitize-filename
 
-const illegalRe = /[\/\?<>\\:\*\|":]/g;
+const illegalRe = /[/?<>\\:*|":]/g;
 // eslint-disable-next-line no-control-regex
 const controlRe = /[\x00-\x1f\x80-\x9f]/g;
 const reservedRe = /^\.+$/;
 const windowsReservedRe = /^(con|prn|aux|nul|com[0-9]|lpt[0-9])(\..*)?$/i;
-const windowsTrailingRe = /[\. ]+$/;
+const windowsTrailingRe = /[. ]+$/;
 
 function isHighSurrogate(codePoint) {
     return codePoint >= 0xd800 && codePoint <= 0xdbff;
diff --git a/src/components/search/searchfields.js b/src/components/search/searchfields.js
index 601966db40..b3d5ed86af 100644
--- a/src/components/search/searchfields.js
+++ b/src/components/search/searchfields.js
@@ -61,7 +61,7 @@ import template from './searchfields.template.html';
         triggerSearch(searchFieldsInstance, value);
     }
 
-    function embed(elem, instance, options) {
+    function embed(elem, instance) {
         let html = globalize.translateHtml(template, 'core');
 
         if (browser.tizen || browser.orsay) {
@@ -89,7 +89,7 @@ import template from './searchfields.template.html';
 class SearchFields {
     constructor(options) {
         this.options = options;
-        embed(options.element, this, options);
+        embed(options.element, this);
     }
     focus() {
         this.options.element.querySelector('.searchfields-txtSearch').focus();
diff --git a/src/components/search/searchresults.js b/src/components/search/searchresults.js
index 367132ef9d..78d222623b 100644
--- a/src/components/search/searchresults.js
+++ b/src/components/search/searchresults.js
@@ -585,7 +585,7 @@ import template from './searchresults.template.html';
         return originalString.replace(reg, strWith);
     }
 
-    function embed(elem, instance, options) {
+    function embed(elem, instance) {
         let workingTemplate = template;
         if (!enableScrollX()) {
             workingTemplate = replaceAll(workingTemplate, 'data-horizontal="true"', 'data-horizontal="false"');
@@ -603,7 +603,7 @@ import template from './searchresults.template.html';
 class SearchResults {
     constructor(options) {
         this.options = options;
-        embed(options.element, this, options);
+        embed(options.element, this);
     }
     search(value) {
         const apiClient = ServerConnections.getApiClient(this.options.serverId);
diff --git a/src/components/slideshow/slideshow.js b/src/components/slideshow/slideshow.js
index 6ae0c26f0a..acef913e0d 100644
--- a/src/components/slideshow/slideshow.js
+++ b/src/components/slideshow/slideshow.js
@@ -210,7 +210,7 @@ export default function (options) {
         dialog.innerHTML = html;
 
         if (options.interactive && !layoutManager.tv) {
-            dialog.querySelector('.btnSlideshowExit').addEventListener('click', function (e) {
+            dialog.querySelector('.btnSlideshowExit').addEventListener('click', function () {
                 dialogHelper.close(dialog);
             });
 
@@ -381,10 +381,9 @@ export default function (options) {
     /**
      * Renders the HTML markup of a slide for an item or a slide.
      * @param {Object} item - The item used to render the slide.
-     * @param {number} index - The index of the item in the Swiper instance.
      * @returns {string} The HTML markup of the slide.
      */
-    function getSwiperSlideHtml(item, index) {
+    function getSwiperSlideHtml(item) {
         if (currentOptions.slides) {
             return getSwiperSlideHtmlFromSlide(item);
         } else {
diff --git a/src/components/subtitleuploader/subtitleuploader.js b/src/components/subtitleuploader/subtitleuploader.js
index 8d94a8ff39..500b1706bb 100644
--- a/src/components/subtitleuploader/subtitleuploader.js
+++ b/src/components/subtitleuploader/subtitleuploader.js
@@ -108,7 +108,7 @@ function initEditor(page) {
     });
 }
 
-function showEditor(options, resolve, reject) {
+function showEditor(options, resolve) {
     options = options || {};
     currentItemId = options.itemId;
     currentServerId = options.serverId;
@@ -161,9 +161,9 @@ function showEditor(options, resolve, reject) {
 }
 
 export function show(options) {
-    return new Promise(function (resolve, reject) {
+    return new Promise(function (resolve) {
         hasChanges = false;
-        showEditor(options, resolve, reject);
+        showEditor(options, resolve);
     });
 }
 
diff --git a/src/components/syncPlay/core/Manager.js b/src/components/syncPlay/core/Manager.js
index 18f4844bae..f792fee094 100644
--- a/src/components/syncPlay/core/Manager.js
+++ b/src/components/syncPlay/core/Manager.js
@@ -130,7 +130,7 @@ class Manager {
     /**
      * Called when the player changes.
      */
-    onPlayerChange(newPlayer, newTarget, oldPlayer) {
+    onPlayerChange(newPlayer) {
         this.bindToPlayer(newPlayer);
     }
 
@@ -228,9 +228,8 @@ class Manager {
     /**
      * Handles a playback command from the server.
      * @param {Object} cmd The playback command.
-     * @param {Object} apiClient The ApiClient.
      */
-    processCommand(cmd, apiClient) {
+    processCommand(cmd) {
         if (cmd === null) return;
 
         if (typeof cmd.When === 'string') {
@@ -277,9 +276,8 @@ class Manager {
     /**
      * Handles a group state change.
      * @param {Object} update The group state update.
-     * @param {Object} apiClient The ApiClient.
      */
-    processStateChange(update, apiClient) {
+    processStateChange(update) {
         if (update === null || update.State === null || update.Reason === null) return;
 
         if (!this.isSyncPlayEnabled()) {
diff --git a/src/components/syncPlay/core/players/GenericPlayer.js b/src/components/syncPlay/core/players/GenericPlayer.js
index ac922387b8..f3f2e9715c 100644
--- a/src/components/syncPlay/core/players/GenericPlayer.js
+++ b/src/components/syncPlay/core/players/GenericPlayer.js
@@ -158,6 +158,7 @@ class GenericPlayer {
      * Sets the playback rate, if supported.
      * @param {number} value The playback rate.
      */
+    // eslint-disable-next-line no-unused-vars
     setPlaybackRate(value) {
         // Do nothing.
     }
@@ -196,6 +197,7 @@ class GenericPlayer {
      * Seeks the player to the specified position.
      * @param {number} positionTicks The new position.
      */
+    // eslint-disable-next-line no-unused-vars
     localSeek(positionTicks) {
 
     }
@@ -211,6 +213,7 @@ class GenericPlayer {
      * Sends a command to the player.
      * @param {Object} command The command.
      */
+    // eslint-disable-next-line no-unused-vars
     localSendCommand(command) {
 
     }
@@ -219,6 +222,7 @@ class GenericPlayer {
      * Starts playback.
      * @param {Object} options Playback data.
      */
+    // eslint-disable-next-line no-unused-vars
     localPlay(options) {
 
     }
@@ -227,6 +231,7 @@ class GenericPlayer {
      * Sets playing item from playlist.
      * @param {string} playlistItemId The item to play.
      */
+    // eslint-disable-next-line no-unused-vars
     localSetCurrentPlaylistItem(playlistItemId) {
 
     }
@@ -235,6 +240,7 @@ class GenericPlayer {
      * Removes items from playlist.
      * @param {Array} playlistItemIds The items to remove.
      */
+    // eslint-disable-next-line no-unused-vars
     localRemoveFromPlaylist(playlistItemIds) {
 
     }
@@ -244,6 +250,7 @@ class GenericPlayer {
      * @param {string} playlistItemId The item to move.
      * @param {number} newIndex The new position.
      */
+    // eslint-disable-next-line no-unused-vars
     localMovePlaylistItem(playlistItemId, newIndex) {
 
     }
@@ -252,6 +259,7 @@ class GenericPlayer {
      * Queues in the playlist.
      * @param {Object} options Queue data.
      */
+    // eslint-disable-next-line no-unused-vars
     localQueue(options) {
 
     }
@@ -260,6 +268,7 @@ class GenericPlayer {
      * Queues after the playing item in the playlist.
      * @param {Object} options Queue data.
      */
+    // eslint-disable-next-line no-unused-vars
     localQueueNext(options) {
 
     }
@@ -282,6 +291,7 @@ class GenericPlayer {
      * Sets repeat mode.
      * @param {string} value The repeat mode.
      */
+    // eslint-disable-next-line no-unused-vars
     localSetRepeatMode(value) {
 
     }
@@ -290,6 +300,7 @@ class GenericPlayer {
      * Sets shuffle mode.
      * @param {string} value The shuffle mode.
      */
+    // eslint-disable-next-line no-unused-vars
     localSetQueueShuffleMode(value) {
 
     }
diff --git a/src/components/syncPlay/ui/players/NoActivePlayer.js b/src/components/syncPlay/ui/players/NoActivePlayer.js
index 48dfe953ba..fe13d28439 100644
--- a/src/components/syncPlay/ui/players/NoActivePlayer.js
+++ b/src/components/syncPlay/ui/players/NoActivePlayer.js
@@ -135,7 +135,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's seek method.
      */
-    seekRequest(positionTicks, player) {
+    seekRequest(positionTicks) {
         const controller = syncPlayManager.getController();
         controller.seek(positionTicks);
     }
@@ -148,19 +148,19 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
         const controller = syncPlayManager.getController();
         const playerWrapper = syncPlayManager.getPlayerWrapper();
 
-        const defaultAction = (_command, _player) => {
+        const defaultAction = (_command) => {
             playerWrapper.localSendCommand(_command);
         };
 
-        const ignoreCallback = (_command, _player) => {
+        const ignoreCallback = () => {
             // Do nothing.
         };
 
-        const SetRepeatModeCallback = (_command, _player) => {
+        const SetRepeatModeCallback = (_command) => {
             controller.setRepeatMode(_command.Arguments.RepeatMode);
         };
 
-        const SetShuffleQueueCallback = (_command, _player) => {
+        const SetShuffleQueueCallback = (_command) => {
             controller.setShuffleMode(_command.Arguments.ShuffleMode);
         };
 
@@ -176,7 +176,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
         if (typeof commandHandler === 'function') {
             commandHandler(command, player);
         } else {
-            defaultAction(command, player);
+            defaultAction(command);
         }
     }
 
@@ -242,7 +242,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's setCurrentPlaylistItem method.
      */
-    setCurrentPlaylistItemRequest(playlistItemId, player) {
+    setCurrentPlaylistItemRequest(playlistItemId) {
         const controller = syncPlayManager.getController();
         controller.setCurrentPlaylistItem(playlistItemId);
     }
@@ -250,7 +250,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's removeFromPlaylist method.
      */
-    removeFromPlaylistRequest(playlistItemIds, player) {
+    removeFromPlaylistRequest(playlistItemIds) {
         const controller = syncPlayManager.getController();
         controller.removeFromPlaylist(playlistItemIds);
     }
@@ -258,7 +258,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's movePlaylistItem method.
      */
-    movePlaylistItemRequest(playlistItemId, newIndex, player) {
+    movePlaylistItemRequest(playlistItemId, newIndex) {
         const controller = syncPlayManager.getController();
         controller.movePlaylistItem(playlistItemId, newIndex);
     }
@@ -266,7 +266,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's queue method.
      */
-    queueRequest(options, player) {
+    queueRequest(options) {
         const controller = syncPlayManager.getController();
         controller.queue(options);
     }
@@ -274,7 +274,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's queueNext method.
      */
-    queueNextRequest(options, player) {
+    queueNextRequest(options) {
         const controller = syncPlayManager.getController();
         controller.queueNext(options);
     }
@@ -282,7 +282,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's nextTrack method.
      */
-    nextTrackRequest(player) {
+    nextTrackRequest() {
         const controller = syncPlayManager.getController();
         controller.nextItem();
     }
@@ -290,7 +290,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's previousTrack method.
      */
-    previousTrackRequest(player) {
+    previousTrackRequest() {
         const controller = syncPlayManager.getController();
         controller.previousItem();
     }
@@ -298,7 +298,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's setRepeatMode method.
      */
-    setRepeatModeRequest(mode, player) {
+    setRepeatModeRequest(mode) {
         const controller = syncPlayManager.getController();
         controller.setRepeatMode(mode);
     }
@@ -306,7 +306,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's setQueueShuffleMode method.
      */
-    setQueueShuffleModeRequest(mode, player) {
+    setQueueShuffleModeRequest(mode) {
         const controller = syncPlayManager.getController();
         controller.setShuffleMode(mode);
     }
@@ -314,7 +314,7 @@ class NoActivePlayer extends SyncPlay.Players.GenericPlayer {
     /**
      * Overrides PlaybackManager's toggleQueueShuffleMode method.
      */
-    toggleQueueShuffleModeRequest(player) {
+    toggleQueueShuffleModeRequest() {
         const controller = syncPlayManager.getController();
         controller.toggleShuffleMode();
     }
diff --git a/src/components/syncPlay/ui/players/QueueManager.js b/src/components/syncPlay/ui/players/QueueManager.js
index bcc6c1c2b3..a588109158 100644
--- a/src/components/syncPlay/ui/players/QueueManager.js
+++ b/src/components/syncPlay/ui/players/QueueManager.js
@@ -21,14 +21,14 @@ class QueueManager {
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    setPlaylist(items) {
+    setPlaylist() {
         // Do nothing.
     }
 
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    queue(items) {
+    queue() {
         // Do nothing.
     }
 
@@ -49,14 +49,14 @@ class QueueManager {
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    clearPlaylist(clearCurrentItem = false) {
+    clearPlaylist() {
         // Do nothing.
     }
 
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    queueNext(items) {
+    queueNext() {
         // Do nothing.
     }
 
@@ -90,28 +90,28 @@ class QueueManager {
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    setPlaylistState(playlistItemId, playlistIndex) {
+    setPlaylistState() {
         // Do nothing.
     }
 
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    setPlaylistIndex(playlistIndex) {
+    setPlaylistIndex() {
         // Do nothing.
     }
 
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    removeFromPlaylist(playlistItemIds) {
+    removeFromPlaylist() {
         // Do nothing.
     }
 
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    movePlaylistItem(playlistItemId, newIndex) {
+    movePlaylistItem() {
         // Do nothing.
         return {
             result: 'noop'
@@ -128,7 +128,7 @@ class QueueManager {
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    setRepeatMode(value) {
+    setRepeatMode() {
         // Do nothing.
     }
 
@@ -142,7 +142,7 @@ class QueueManager {
     /**
      * Placeholder for original PlayQueueManager method.
      */
-    setShuffleMode(value) {
+    setShuffleMode() {
         // Do nothing.
     }
 
diff --git a/src/components/tabbedview/tabbedview.js b/src/components/tabbedview/tabbedview.js
index efc9fb37c5..833b42cc02 100644
--- a/src/components/tabbedview/tabbedview.js
+++ b/src/components/tabbedview/tabbedview.js
@@ -4,7 +4,7 @@ import layoutManager from '../layoutManager';
 import '../../elements/emby-tabs/emby-tabs';
 import { appRouter } from '../appRouter';
 
-function onViewDestroy(e) {
+function onViewDestroy() {
     const tabControllers = this.tabControllers;
 
     if (tabControllers) {
@@ -78,7 +78,7 @@ class TabbedView {
 
         view.addEventListener('viewbeforehide', this.onPause.bind(this));
 
-        view.addEventListener('viewbeforeshow', function (e) {
+        view.addEventListener('viewbeforeshow', function () {
             mainTabsManager.setTabs(view, currentTabIndex, self.getTabs, getTabContainers, onBeforeTabChange, onTabChange, false);
         });
 
@@ -89,7 +89,7 @@ class TabbedView {
         view.addEventListener('viewdestroy', onViewDestroy.bind(this));
     }
 
-    onResume(options) {
+    onResume() {
         this.setTitle();
         backdrop.clearBackdrop();
 
diff --git a/src/components/tunerPicker.js b/src/components/tunerPicker.js
index d652f2ad3b..95c32df068 100644
--- a/src/components/tunerPicker.js
+++ b/src/components/tunerPicker.js
@@ -11,7 +11,6 @@ import './formdialog.scss';
 import '../elements/emby-button/emby-button';
 import '../elements/emby-itemscontainer/emby-itemscontainer';
 import './cardbuilder/card.scss';
-import ServerConnections from './ServerConnections';
 
 const enableFocusTransform = !browser.slow && !browser.edge;
 
@@ -106,7 +105,7 @@ function renderDevices(view, devices) {
     }
 }
 
-function discoverDevices(view, apiClient) {
+function discoverDevices(view) {
     loading.show();
     view.querySelector('.loadingContent').classList.remove('hide');
     return ApiClient.getJSON(ApiClient.getUrl('LiveTv/Tuners/Discvover', {
@@ -120,7 +119,7 @@ function discoverDevices(view, apiClient) {
 }
 
 function tunerPicker() {
-    this.show = function (options) {
+    this.show = function () {
         const dialogOptions = {
             removeOnClose: true,
             scrollY: false
@@ -163,8 +162,7 @@ function tunerPicker() {
             scrollHelper.centerFocus.on(dlg.querySelector('.formDialogContent'), false);
         }
 
-        const apiClient = ServerConnections.getApiClient(options.serverId);
-        discoverDevices(dlg, apiClient);
+        discoverDevices(dlg);
 
         if (layoutManager.tv) {
             scrollHelper.centerFocus.off(dlg.querySelector('.formDialogContent'), false);
diff --git a/src/components/tvproviders/schedulesdirect.js b/src/components/tvproviders/schedulesdirect.js
index f005492493..1d0e8a49f2 100644
--- a/src/components/tvproviders/schedulesdirect.js
+++ b/src/components/tvproviders/schedulesdirect.js
@@ -149,7 +149,7 @@ export default function (page, providerId, options) {
                 }),
                 data: JSON.stringify(info),
                 contentType: 'application/json'
-            }).then(function (result) {
+            }).then(function () {
                 loading.hide();
 
                 if (options.showConfirmation) {
@@ -190,7 +190,7 @@ export default function (page, providerId, options) {
             }
 
             loading.hide();
-        }, function (result) {
+        }, function () {
             Dashboard.alert({
                 message: globalize.translate('ErrorGettingTvLineups')
             });
diff --git a/src/components/tvproviders/xmltv.js b/src/components/tvproviders/xmltv.js
index 1b7c7c7063..853f9975cb 100644
--- a/src/components/tvproviders/xmltv.js
+++ b/src/components/tvproviders/xmltv.js
@@ -88,7 +88,7 @@ export default function (page, providerId, options) {
                 }),
                 data: JSON.stringify(info),
                 contentType: 'application/json'
-            }).then(function (result) {
+            }).then(function () {
                 loading.hide();
 
                 if (options.showConfirmation !== false) {
diff --git a/src/components/viewContainer.js b/src/components/viewContainer.js
index f17d900d7c..9a1f9eee03 100644
--- a/src/components/viewContainer.js
+++ b/src/components/viewContainer.js
@@ -119,7 +119,7 @@ import Dashboard from '../scripts/clientUtils';
     function parseHtml(html, hasScript) {
         if (hasScript) {
             html = replaceAll(html, '\x3c!--<script', '<script');
-            html = replaceAll(html, '<\/script>--\x3e', '<\/script>');
+            html = replaceAll(html, '</script>--\x3e', '</script>');
         }
 
         const wrapper = document.createElement('div');
diff --git a/src/controllers/dashboard/dashboard.js b/src/controllers/dashboard/dashboard.js
index ae0061bc12..0a04cab682 100644
--- a/src/controllers/dashboard/dashboard.js
+++ b/src/controllers/dashboard/dashboard.js
@@ -218,17 +218,17 @@ import confirm from '../../components/confirm/confirm';
         });
     }
 
-    function renderInfo(view, sessions, forceUpdate) {
+    function renderInfo(view, sessions) {
         sessions = filterSessions(sessions);
         renderActiveConnections(view, sessions);
         loading.hide();
     }
 
-    function pollForInfo(view, apiClient, forceUpdate) {
+    function pollForInfo(view, apiClient) {
         apiClient.getSessions({
             ActiveWithinSeconds: 960
         }).then(function (sessions) {
-            renderInfo(view, sessions, forceUpdate);
+            renderInfo(view, sessions);
         });
         apiClient.getScheduledTasks().then(function (tasks) {
             renderRunningTasks(view, tasks);
@@ -730,7 +730,7 @@ import confirm from '../../components/confirm/confirm';
             });
         }
     };
-    export default function (view, params) {
+    export default function (view) {
         function onRestartRequired(evt, apiClient) {
             console.debug('onRestartRequired not implemented', evt, apiClient);
         }
@@ -745,14 +745,14 @@ import confirm from '../../components/confirm/confirm';
 
         function onPackageInstalling(evt, apiClient) {
             if (apiClient.serverId() === serverId) {
-                pollForInfo(view, apiClient, true);
+                pollForInfo(view, apiClient);
                 reloadSystemInfo(view, apiClient);
             }
         }
 
         function onPackageInstallationCompleted(evt, apiClient) {
             if (apiClient.serverId() === serverId) {
-                pollForInfo(view, apiClient, true);
+                pollForInfo(view, apiClient);
                 reloadSystemInfo(view, apiClient);
             }
         }
diff --git a/src/controllers/dashboard/devices/device.js b/src/controllers/dashboard/devices/device.js
index 18404d605f..ab9b5a664c 100644
--- a/src/controllers/dashboard/devices/device.js
+++ b/src/controllers/dashboard/devices/device.js
@@ -48,7 +48,7 @@ import Dashboard from '../../../scripts/clientUtils';
         return false;
     }
 
-    export default function (view, params) {
+    export default function (view) {
         view.querySelector('form').addEventListener('submit', onSubmit);
         view.addEventListener('viewshow', loadData);
     }
diff --git a/src/controllers/dashboard/devices/devices.js b/src/controllers/dashboard/devices/devices.js
index 7042c8f8b7..58c1406241 100644
--- a/src/controllers/dashboard/devices/devices.js
+++ b/src/controllers/dashboard/devices/devices.js
@@ -149,7 +149,7 @@ import confirm from '../../../components/confirm/confirm';
     }
 
     const canEdit = ApiClient.isMinServerVersion('3.4.1.31');
-    export default function (view, params) {
+    export default function (view) {
         view.querySelector('.devicesList').addEventListener('click', function (e) {
             const btnDeviceMenu = dom.parentWithClass(e.target, 'btnDeviceMenu');
 
diff --git a/src/controllers/dashboard/encodingsettings.js b/src/controllers/dashboard/encodingsettings.js
index 83c965880b..88f1e975cd 100644
--- a/src/controllers/dashboard/encodingsettings.js
+++ b/src/controllers/dashboard/encodingsettings.js
@@ -48,13 +48,13 @@ import alert from '../../components/alert';
         loading.hide();
     }
 
-    function onSaveEncodingPathFailure(response) {
+    function onSaveEncodingPathFailure() {
         loading.hide();
         alert(globalize.translate('FFmpegSavePathNotFound'));
     }
 
     function updateEncoder(form) {
-        return ApiClient.getSystemInfo().then(function (systemInfo) {
+        return ApiClient.getSystemInfo().then(function () {
             return ApiClient.ajax({
                 url: ApiClient.getUrl('System/MediaEncoder/Path'),
                 type: 'POST',
diff --git a/src/controllers/dashboard/general.js b/src/controllers/dashboard/general.js
index a780f35e19..d919dbf119 100644
--- a/src/controllers/dashboard/general.js
+++ b/src/controllers/dashboard/general.js
@@ -19,7 +19,6 @@ import alert from '../../components/alert';
         $('#selectLocalizationLanguage', page).html(languageOptions.map(function (language) {
             return '<option value="' + language.Value + '">' + language.Name + '</option>';
         })).val(config.UICulture);
-        currentLanguage = config.UICulture;
 
         loading.hide();
     }
@@ -34,16 +33,11 @@ import alert from '../../components/alert';
             config.CachePath = form.querySelector('#txtCachePath').value;
             config.MetadataPath = $('#txtMetadataPath', form).val();
             config.MetadataNetworkPath = $('#txtMetadataNetworkPath', form).val();
-            let requiresReload = config.UICulture !== currentLanguage;
             ApiClient.updateServerConfiguration(config).then(function() {
                 ApiClient.getNamedConfiguration(brandingConfigKey).then(function(brandingConfig) {
                     brandingConfig.LoginDisclaimer = form.querySelector('#txtLoginDisclaimer').value;
                     brandingConfig.CustomCss = form.querySelector('#txtCustomCss').value;
 
-                    if (currentBrandingOptions && brandingConfig.CustomCss !== currentBrandingOptions.CustomCss) {
-                        requiresReload = true;
-                    }
-
                     ApiClient.updateNamedConfiguration(brandingConfigKey, brandingConfig).then(function () {
                         Dashboard.processServerConfigurationUpdateResult();
                     });
@@ -56,10 +50,8 @@ import alert from '../../components/alert';
         return false;
     }
 
-    let currentBrandingOptions;
-    let currentLanguage;
     const brandingConfigKey = 'branding';
-    export default function (view, params) {
+    export default function (view) {
         $('#btnSelectCachePath', view).on('click.selectDirectory', function () {
             import('../../components/directorybrowser/directorybrowser').then(({default: directoryBrowser}) => {
                 const picker = new directoryBrowser();
@@ -110,7 +102,6 @@ import alert from '../../components/alert';
                 loadPage(view, responses[0], responses[1], responses[2]);
             });
             ApiClient.getNamedConfiguration(brandingConfigKey).then(function (config) {
-                currentBrandingOptions = config;
                 view.querySelector('#txtLoginDisclaimer').value = config.LoginDisclaimer || '';
                 view.querySelector('#txtCustomCss').value = config.CustomCss || '';
             });
diff --git a/src/controllers/dashboard/librarydisplay.js b/src/controllers/dashboard/librarydisplay.js
index 75abfe308f..3eb56004e0 100644
--- a/src/controllers/dashboard/librarydisplay.js
+++ b/src/controllers/dashboard/librarydisplay.js
@@ -23,7 +23,7 @@ import Dashboard from '../../scripts/clientUtils';
         }];
     }
 
-    export default function(view, params) {
+    export default function(view) {
         function loadData() {
             ApiClient.getServerConfiguration().then(function(config) {
                 view.querySelector('.chkFolderView').checked = config.EnableFolderView;
diff --git a/src/controllers/dashboard/logs.js b/src/controllers/dashboard/logs.js
index dac9a6eff9..2f9882c228 100644
--- a/src/controllers/dashboard/logs.js
+++ b/src/controllers/dashboard/logs.js
@@ -6,7 +6,7 @@ import '../../assets/css/flexstyles.scss';
 
 /* eslint-disable indent */
 
-    export default function(view, params) {
+    export default function(view) {
         view.addEventListener('viewbeforeshow', function() {
             loading.show();
             const apiClient = ApiClient;
diff --git a/src/controllers/dashboard/metadatanfo.js b/src/controllers/dashboard/metadatanfo.js
index a8500f2735..b0af868582 100644
--- a/src/controllers/dashboard/metadatanfo.js
+++ b/src/controllers/dashboard/metadatanfo.js
@@ -31,13 +31,13 @@ import alert from '../../components/alert';
             config.EnableExtraThumbsDuplication = form.querySelector('#chkEnableExtraThumbs').checked;
             ApiClient.updateNamedConfiguration(metadataKey, config).then(function () {
                 Dashboard.processServerConfigurationUpdateResult();
-                showConfirmMessage(config);
+                showConfirmMessage();
             });
         });
         return false;
     }
 
-    function showConfirmMessage(config) {
+    function showConfirmMessage() {
         const msg = [];
         msg.push(globalize.translate('MetadataSettingChangeHelp'));
         alert({
diff --git a/src/controllers/dashboard/networking.js b/src/controllers/dashboard/networking.js
index b314e1ea8b..5cfab50938 100644
--- a/src/controllers/dashboard/networking.js
+++ b/src/controllers/dashboard/networking.js
@@ -131,7 +131,7 @@ import alert from '../../components/alert';
         }
     }
 
-    export default function (view, params) {
+    export default function (view) {
         function loadPage(page, config) {
             page.querySelector('#txtPortNumber').value = config.HttpServerPortNumber;
             page.querySelector('#txtPublicPort').value = config.PublicPort;
@@ -198,7 +198,7 @@ import alert from '../../components/alert';
             });
         });
         view.querySelector('.dashboardHostingForm').addEventListener('submit', onSubmit);
-        view.addEventListener('viewshow', function (e) {
+        view.addEventListener('viewshow', function () {
             loading.show();
             ApiClient.getNamedConfiguration('network').then(function (config) {
                 loadPage(view, config);
diff --git a/src/controllers/dashboard/notifications/notification/index.js b/src/controllers/dashboard/notifications/notification/index.js
index eda0004420..1bd5100c96 100644
--- a/src/controllers/dashboard/notifications/notification/index.js
+++ b/src/controllers/dashboard/notifications/notification/index.js
@@ -91,7 +91,7 @@ function save(page) {
         }).map(function (c) {
             return c.getAttribute('data-itemid');
         });
-        ApiClient.updateNamedConfiguration(notificationsConfigurationKey, notificationOptions).then(function (r) {
+        ApiClient.updateNamedConfiguration(notificationsConfigurationKey, notificationOptions).then(function () {
             Dashboard.processServerConfigurationUpdateResult();
             Dashboard.navigate('notificationsettings.html');
         });
diff --git a/src/controllers/dashboard/notifications/notifications/index.js b/src/controllers/dashboard/notifications/notifications/index.js
index fc2eb0c2dd..befb64c383 100644
--- a/src/controllers/dashboard/notifications/notifications/index.js
+++ b/src/controllers/dashboard/notifications/notifications/index.js
@@ -54,7 +54,7 @@ function reload(page) {
     });
 }
 
-export default function (view, params) {
+export default function (view) {
     view.addEventListener('viewshow', function () {
         reload(view);
     });
diff --git a/src/controllers/dashboard/plugins/repositories/index.js b/src/controllers/dashboard/plugins/repositories/index.js
index dfe11c0c99..0b761df169 100644
--- a/src/controllers/dashboard/plugins/repositories/index.js
+++ b/src/controllers/dashboard/plugins/repositories/index.js
@@ -19,7 +19,7 @@ function reloadList(page) {
             noneElement: page.querySelector('#none'),
             repositories: repositories
         });
-    }).catch(error => {
+    }).catch(() => {
         console.error('error loading repositories');
         page.querySelector('#none').classList.remove('hide');
         loading.hide();
@@ -33,9 +33,9 @@ function saveList(page) {
         url: ApiClient.getUrl('Repositories'),
         data: JSON.stringify(repositories),
         contentType: 'application/json'
-    }).then(response => {
+    }).then(() => {
         reloadList(page);
-    }).catch(error => {
+    }).catch(() => {
         console.error('error saving repositories');
         loading.hide();
     });
@@ -90,7 +90,7 @@ function getTabs() {
     }];
 }
 
-export default function(view, params) {
+export default function(view) {
     view.addEventListener('viewshow', function () {
         libraryMenu.setTabs('plugins', 2, getTabs);
         reloadList(this);
diff --git a/src/controllers/dashboard/scheduledtasks/scheduledtask.js b/src/controllers/dashboard/scheduledtasks/scheduledtask.js
index 149b1d20a6..db6847dcd3 100644
--- a/src/controllers/dashboard/scheduledtasks/scheduledtask.js
+++ b/src/controllers/dashboard/scheduledtasks/scheduledtask.js
@@ -207,7 +207,7 @@ import confirm from '../../../components/confirm/confirm';
             return trigger;
         }
     };
-    export default function (view, params) {
+    export default function (view) {
         function onSubmit(e) {
             loading.show();
             const id = getParameterByName('id');
diff --git a/src/controllers/dashboard/scheduledtasks/scheduledtasks.js b/src/controllers/dashboard/scheduledtasks/scheduledtasks.js
index 8792c4f5b0..a7139ca02e 100644
--- a/src/controllers/dashboard/scheduledtasks/scheduledtasks.js
+++ b/src/controllers/dashboard/scheduledtasks/scheduledtasks.js
@@ -123,7 +123,7 @@ import '../../../elements/emby-button/emby-button';
         $(elem).parents('.listItem')[0].setAttribute('data-status', state);
     }
 
-    export default function(view, params) {
+    export default function(view) {
         function updateTasks(tasks) {
             for (let i = 0; i < tasks.length; i++) {
                 const task = tasks[i];
diff --git a/src/controllers/dashboard/users/useredit.js b/src/controllers/dashboard/users/useredit.js
index 6466827021..c45f0c9af3 100644
--- a/src/controllers/dashboard/users/useredit.js
+++ b/src/controllers/dashboard/users/useredit.js
@@ -108,7 +108,7 @@ import toast from '../../../components/toast/toast';
         loading.hide();
     }
 
-    function onSaveComplete(page, user) {
+    function onSaveComplete() {
         Dashboard.navigate('userprofiles.html');
         loading.hide();
         toast(globalize.translate('SettingsSaved'));
@@ -146,7 +146,7 @@ import toast from '../../../components/toast/toast';
         }
         ApiClient.updateUser(user).then(function () {
             ApiClient.updateUserPolicy(user.Id, user.Policy).then(function () {
-                onSaveComplete(page, user);
+                onSaveComplete();
             });
         });
     }
diff --git a/src/controllers/dashboard/users/userlibraryaccess.js b/src/controllers/dashboard/users/userlibraryaccess.js
index d3407de5b6..0f68133d89 100644
--- a/src/controllers/dashboard/users/userlibraryaccess.js
+++ b/src/controllers/dashboard/users/userlibraryaccess.js
@@ -91,7 +91,7 @@ import toast from '../../../components/toast/toast';
         loading.hide();
     }
 
-    function onSaveComplete(page) {
+    function onSaveComplete() {
         loading.hide();
         toast(globalize.translate('SettingsSaved'));
     }
@@ -118,7 +118,7 @@ import toast from '../../../components/toast/toast';
         user.Policy.BlockedChannels = null;
         user.Policy.BlockedMediaFolders = null;
         ApiClient.updateUserPolicy(user.Id, user.Policy).then(function () {
-            onSaveComplete(page);
+            onSaveComplete();
         });
     }
 
diff --git a/src/controllers/dashboard/users/usernew.js b/src/controllers/dashboard/users/usernew.js
index 95138a5125..406bf55c86 100644
--- a/src/controllers/dashboard/users/usernew.js
+++ b/src/controllers/dashboard/users/usernew.js
@@ -89,7 +89,7 @@ import toast from '../../../components/toast/toast';
             ApiClient.updateUserPolicy(user.Id, user.Policy).then(function () {
                 Dashboard.navigate('useredit.html?userId=' + user.Id);
             });
-        }, function (response) {
+        }, function () {
             toast(globalize.translate('ErrorDefault'));
             loading.hide();
         });
diff --git a/src/controllers/dashboard/users/userparentalcontrol.js b/src/controllers/dashboard/users/userparentalcontrol.js
index 262e24b289..86af9a2377 100644
--- a/src/controllers/dashboard/users/userparentalcontrol.js
+++ b/src/controllers/dashboard/users/userparentalcontrol.js
@@ -161,7 +161,7 @@ import toast from '../../../components/toast/toast';
         });
     }
 
-    function onSaveComplete(page) {
+    function onSaveComplete() {
         loading.hide();
         toast(globalize.translate('SettingsSaved'));
     }
@@ -176,7 +176,7 @@ import toast from '../../../components/toast/toast';
         user.Policy.AccessSchedules = getSchedulesFromPage(page);
         user.Policy.BlockedTags = getBlockedTagsFromPage(page);
         ApiClient.updateUserPolicy(user.Id, user.Policy).then(function () {
-            onSaveComplete(page);
+            onSaveComplete();
         });
     }
 
diff --git a/src/controllers/dashboard/users/userprofilespage.js b/src/controllers/dashboard/users/userprofilespage.js
index 91499a40a8..7b91692600 100644
--- a/src/controllers/dashboard/users/userprofilespage.js
+++ b/src/controllers/dashboard/users/userprofilespage.js
@@ -82,7 +82,7 @@ import cardBuilder from '../../../components/cardbuilder/cardBuilder';
         });
     }
 
-    function getUserHtml(user, addConnectIndicator) {
+    function getUserHtml(user) {
         let html = '';
         let cssClass = 'card squareCard scalableCard squareCard-scalable';
 
@@ -146,14 +146,14 @@ import cardBuilder from '../../../components/cardbuilder/cardBuilder';
         return '';
     }
 
-    function getUserSectionHtml(users, addConnectIndicator) {
+    function getUserSectionHtml(users) {
         return users.map(function (u__q) {
-            return getUserHtml(u__q, addConnectIndicator);
+            return getUserHtml(u__q);
         }).join('');
     }
 
     function renderUsers(page, users) {
-        page.querySelector('.localUsers').innerHTML = getUserSectionHtml(users, true);
+        page.querySelector('.localUsers').innerHTML = getUserSectionHtml(users);
     }
 
     function loadData(page) {
diff --git a/src/controllers/edititemmetadata.js b/src/controllers/edititemmetadata.js
index a371e6161a..a5ac202cc7 100644
--- a/src/controllers/edititemmetadata.js
+++ b/src/controllers/edititemmetadata.js
@@ -14,7 +14,7 @@ function reload(context, itemId) {
     }
 }
 
-export default function (view, params) {
+export default function (view) {
     view.addEventListener('viewshow', function () {
         reload(this, MetadataEditor.getCurrentItemId());
     });
diff --git a/src/controllers/list.js b/src/controllers/list.js
index 6305a95a26..d055f9e747 100644
--- a/src/controllers/list.js
+++ b/src/controllers/list.js
@@ -817,7 +817,7 @@ class ItemsView {
                 itemsContainer: self.itemsContainer
             });
         });
-        view.addEventListener('viewhide', function (e) {
+        view.addEventListener('viewhide', function () {
             const itemsContainer = self.itemsContainer;
 
             if (itemsContainer) {
diff --git a/src/controllers/livetv/livetvchannels.js b/src/controllers/livetv/livetvchannels.js
index ebf17def54..cd7b50dd44 100644
--- a/src/controllers/livetv/livetvchannels.js
+++ b/src/controllers/livetv/livetvchannels.js
@@ -104,7 +104,7 @@ export default function (view, params, tabContent) {
         });
     }
 
-    function reloadItems(context, save) {
+    function reloadItems(context) {
         loading.show();
         isLoading = true;
         const query = getQuery();
diff --git a/src/controllers/livetv/livetvrecordings.js b/src/controllers/livetv/livetvrecordings.js
index 8ca3530d10..508e8b44a7 100644
--- a/src/controllers/livetv/livetvrecordings.js
+++ b/src/controllers/livetv/livetvrecordings.js
@@ -64,7 +64,7 @@ function renderRecordingFolders(context, promise) {
     });
 }
 
-function onMoreClick(e) {
+function onMoreClick() {
     const type = this.getAttribute('data-type');
     const serverId = ApiClient.serverId();
 
diff --git a/src/controllers/livetvstatus.js b/src/controllers/livetvstatus.js
index bcf9ba577e..397aa50871 100644
--- a/src/controllers/livetvstatus.js
+++ b/src/controllers/livetvstatus.js
@@ -246,7 +246,7 @@ function addProvider(button) {
     });
 }
 
-function addDevice(button) {
+function addDevice() {
     Dashboard.navigate('livetvtuner.html');
 }
 
@@ -296,7 +296,7 @@ function onDevicesListClick(e) {
 $(document).on('pageinit', '#liveTvStatusPage', function () {
     const page = this;
     $('.btnAddDevice', page).on('click', function () {
-        addDevice(this);
+        addDevice();
     });
     $('.formAddDevice', page).on('submit', function () {
         submitAddDeviceForm(page);
diff --git a/src/controllers/livetvtuner.js b/src/controllers/livetvtuner.js
index 65933b03fb..261fbae345 100644
--- a/src/controllers/livetvtuner.js
+++ b/src/controllers/livetvtuner.js
@@ -91,7 +91,7 @@ function submitForm(page) {
         url: ApiClient.getUrl('LiveTv/TunerHosts'),
         data: JSON.stringify(info),
         contentType: 'application/json'
-    }).then(function (result) {
+    }).then(function () {
         Dashboard.processServerConfigurationUpdateResult();
         Dashboard.navigate('livetvstatus.html');
     }, function () {
diff --git a/src/controllers/movies/moviesrecommended.js b/src/controllers/movies/moviesrecommended.js
index 7de4cb4559..31b19a5a2f 100644
--- a/src/controllers/movies/moviesrecommended.js
+++ b/src/controllers/movies/moviesrecommended.js
@@ -155,7 +155,7 @@ import Dashboard from '../../scripts/clientUtils';
         return html;
     }
 
-    function loadSuggestions(page, userId, parentId) {
+    function loadSuggestions(page, userId) {
         const screenWidth = dom.getWindowSize().innerWidth;
         const url = ApiClient.getUrl('Movies/Recommendations', {
             userId: userId,
@@ -222,7 +222,7 @@ import Dashboard from '../../scripts/clientUtils';
         const userId = ApiClient.getCurrentUserId();
         loadResume(tabContent, userId, parentId);
         loadLatest(tabContent, userId, parentId);
-        loadSuggestions(tabContent, userId, parentId);
+        loadSuggestions(tabContent, userId);
     }
 
     function getTabs() {
@@ -389,7 +389,7 @@ import Dashboard from '../../scripts/clientUtils';
 
         const tabControllers = [];
         let renderedTabs = [];
-        view.addEventListener('viewshow', function (e) {
+        view.addEventListener('viewshow', function () {
             initTabs();
             if (!view.getAttribute('data-title')) {
                 const parentId = params.topParentId;
diff --git a/src/controllers/music/musicalbums.js b/src/controllers/music/musicalbums.js
index 031e906edd..d1ac2804df 100644
--- a/src/controllers/music/musicalbums.js
+++ b/src/controllers/music/musicalbums.js
@@ -84,7 +84,7 @@ import '../../elements/emby-itemscontainer/emby-itemscontainer';
             itemsContainer.innerHTML = '';
         };
 
-        const reloadItems = (page) => {
+        const reloadItems = () => {
             loading.show();
             isLoading = true;
             const query = getQuery();
@@ -97,7 +97,7 @@ import '../../elements/emby-itemscontainer/emby-itemscontainer';
                     if (userSettings.libraryPageSize() > 0) {
                         query.StartIndex += query.Limit;
                     }
-                    reloadItems(tabContent);
+                    reloadItems();
                 }
 
                 function onPreviousPageClick() {
@@ -108,11 +108,11 @@ import '../../elements/emby-itemscontainer/emby-itemscontainer';
                     if (userSettings.libraryPageSize() > 0) {
                         query.StartIndex = Math.max(0, query.StartIndex - query.Limit);
                     }
-                    reloadItems(tabContent);
+                    reloadItems();
                 }
 
                 window.scrollTo(0, 0);
-                updateFilterControls(page);
+                updateFilterControls();
                 let html;
                 const pagingHtml = libraryBrowser.getQueryPagingHtml({
                     startIndex: query.StartIndex,
@@ -185,7 +185,7 @@ import '../../elements/emby-itemscontainer/emby-itemscontainer';
             });
         };
 
-        const updateFilterControls = (tabContent) => {
+        const updateFilterControls = () => {
             const query = getQuery();
 
             if (this.alphaPicker) {
@@ -212,7 +212,7 @@ import '../../elements/emby-itemscontainer/emby-itemscontainer';
                 });
                 Events.on(filterDialog, 'filterchange', function () {
                     getQuery().StartIndex = 0;
-                    reloadItems(tabContent);
+                    reloadItems();
                 });
 
                 filterDialog.show();
@@ -232,7 +232,7 @@ import '../../elements/emby-itemscontainer/emby-itemscontainer';
                 const query = getQuery();
                 query.NameStartsWith = newValue;
                 query.StartIndex = 0;
-                reloadItems(tabContent);
+                reloadItems();
             });
 
             this.alphaPicker = new AlphaPicker({
@@ -274,7 +274,7 @@ import '../../elements/emby-itemscontainer/emby-itemscontainer';
                     }],
                     callback: function () {
                         getQuery().StartIndex = 0;
-                        reloadItems(tabContent);
+                        reloadItems();
                     },
                     query: getQuery(),
                     button: e.target
@@ -292,7 +292,7 @@ import '../../elements/emby-itemscontainer/emby-itemscontainer';
                 libraryBrowser.saveViewSetting(getSavedQueryKey(), viewStyle);
                 getQuery().StartIndex = 0;
                 onViewStyleChange();
-                reloadItems(tabContent);
+                reloadItems();
             });
 
             tabContent.querySelector('.btnPlayAll').addEventListener('click', playAll);
@@ -303,8 +303,8 @@ import '../../elements/emby-itemscontainer/emby-itemscontainer';
         onViewStyleChange();
 
         this.renderTab = function () {
-            reloadItems(tabContent);
-            updateFilterControls(tabContent);
+            reloadItems();
+            updateFilterControls();
         };
 
         this.destroy = function () {};
diff --git a/src/controllers/music/musicrecommended.js b/src/controllers/music/musicrecommended.js
index fdfa2cf6da..e08bece779 100644
--- a/src/controllers/music/musicrecommended.js
+++ b/src/controllers/music/musicrecommended.js
@@ -373,7 +373,7 @@ import Dashboard from '../../scripts/clientUtils';
 
         const tabControllers = [];
         const renderedTabs = [];
-        view.addEventListener('viewshow', function (e) {
+        view.addEventListener('viewshow', function () {
             initTabs();
             if (!view.getAttribute('data-title')) {
                 const parentId = params.topParentId;
@@ -391,10 +391,10 @@ import Dashboard from '../../scripts/clientUtils';
 
             inputManager.on(window, onInputCommand);
         });
-        view.addEventListener('viewbeforehide', function (e) {
+        view.addEventListener('viewbeforehide', function () {
             inputManager.off(window, onInputCommand);
         });
-        view.addEventListener('viewdestroy', function (e) {
+        view.addEventListener('viewdestroy', function () {
             tabControllers.forEach(function (t) {
                 if (t.destroy) {
                     t.destroy();
diff --git a/src/controllers/playback/queue/index.js b/src/controllers/playback/queue/index.js
index 8bece4eb3f..cf39aa145b 100644
--- a/src/controllers/playback/queue/index.js
+++ b/src/controllers/playback/queue/index.js
@@ -2,17 +2,17 @@ import remotecontrolFactory from '../../../components/remotecontrol/remotecontro
 import libraryMenu from '../../../scripts/libraryMenu';
 import '../../../elements/emby-button/emby-button';
 
-export default function (view, params) {
+export default function (view) {
     const remoteControl = new remotecontrolFactory();
     remoteControl.init(view, view.querySelector('.remoteControlContent'));
-    view.addEventListener('viewshow', function (e) {
+    view.addEventListener('viewshow', function () {
         libraryMenu.setTransparentMenu(true);
 
         if (remoteControl) {
             remoteControl.onShow();
         }
     });
-    view.addEventListener('viewbeforehide', function (e) {
+    view.addEventListener('viewbeforehide', function () {
         libraryMenu.setTransparentMenu(false);
 
         if (remoteControl) {
diff --git a/src/controllers/playback/video/index.js b/src/controllers/playback/video/index.js
index d74bc103e7..77ca253812 100644
--- a/src/controllers/playback/video/index.js
+++ b/src/controllers/playback/video/index.js
@@ -28,7 +28,7 @@ import { appRouter } from '../../../components/appRouter';
         return document.querySelector('.dialogContainer .dialog.opened');
     }
 
-    export default function (view, params) {
+    export default function (view) {
         function getDisplayItem(item) {
             if (item.Type === 'TvChannel') {
                 const apiClient = ServerConnections.getApiClient(item.ServerId);
@@ -426,18 +426,18 @@ import { appRouter } from '../../../components/appRouter';
             if (state.NowPlayingItem) {
                 isEnabled = true;
                 updatePlayerStateInternal(event, player, state);
-                updatePlaylist(player);
+                updatePlaylist();
                 enableStopOnBack(true);
             }
         }
 
-        function onPlayPauseStateChanged(e) {
+        function onPlayPauseStateChanged() {
             if (isEnabled) {
                 updatePlayPauseState(this.paused());
             }
         }
 
-        function onVolumeChanged(e) {
+        function onVolumeChanged() {
             if (isEnabled) {
                 const player = this;
                 updatePlayerVolumeState(player, player.isMuted(), player.getVolume());
@@ -472,7 +472,7 @@ import { appRouter } from '../../../components/appRouter';
             }
         }
 
-        function onMediaStreamsChanged(e) {
+        function onMediaStreamsChanged() {
             const player = this;
             const state = playbackManager.getPlayerState(player);
             onStateChanged.call(player, {
@@ -534,7 +534,7 @@ import { appRouter } from '../../../components/appRouter';
             }
         }
 
-        function onTimeUpdate(e) {
+        function onTimeUpdate() {
             // Test for 'currentItem' is required for Firefox since its player spams 'timeupdate' events even being at breakpoint
             if (isEnabled && currentItem) {
                 const now = new Date().getTime();
@@ -794,7 +794,7 @@ import { appRouter } from '../../../components/appRouter';
             }
         }
 
-        function updatePlaylist(player) {
+        function updatePlaylist() {
             const btnPreviousTrack = view.querySelector('.btnPreviousTrack');
             const btnNextTrack = view.querySelector('.btnNextTrack');
             btnPreviousTrack.classList.remove('hide');
@@ -818,7 +818,7 @@ import { appRouter } from '../../../components/appRouter';
             elem.innerHTML = html;
         }
 
-        function onSettingsButtonClick(e) {
+        function onSettingsButtonClick() {
             const btn = this;
 
             import('../../../components/playback/playersettingsmenu').then((playerSettingsMenu) => {
@@ -1261,11 +1261,11 @@ import { appRouter } from '../../../components/appRouter';
             nowPlayingPositionSlider.classList.add('focusable');
         }
 
-        view.addEventListener('viewbeforeshow', function (e) {
+        view.addEventListener('viewbeforeshow', function () {
             headerElement.classList.add('osdHeader');
             appRouter.setTransparency('full');
         });
-        view.addEventListener('viewshow', function (e) {
+        view.addEventListener('viewshow', function () {
             try {
                 Events.on(playbackManager, 'playerchange', onPlayerChange);
                 bindToPlayer(playbackManager.getCurrentPlayer());
diff --git a/src/controllers/session/addServer/index.js b/src/controllers/session/addServer/index.js
index aabfdbcca8..3b11caa8e9 100644
--- a/src/controllers/session/addServer/index.js
+++ b/src/controllers/session/addServer/index.js
@@ -49,7 +49,7 @@ import ServerConnections from '../../../components/ServerConnections';
         });
     }
 
-    export default function(view, params) {
+    export default function(view) {
         view.querySelector('.addServerForm').addEventListener('submit', onServerSubmit);
         view.querySelector('.btnCancel').addEventListener('click', goBack);
 
diff --git a/src/controllers/session/forgotPassword/index.js b/src/controllers/session/forgotPassword/index.js
index 203605b8bb..0b165b65f5 100644
--- a/src/controllers/session/forgotPassword/index.js
+++ b/src/controllers/session/forgotPassword/index.js
@@ -36,7 +36,7 @@ import Dashboard from '../../../scripts/clientUtils';
         }
     }
 
-    export default function (view, params) {
+    export default function (view) {
         function onSubmit(e) {
             ApiClient.ajax({
                 type: 'POST',
diff --git a/src/controllers/session/login/index.js b/src/controllers/session/login/index.js
index c87d2dd710..38135dde53 100644
--- a/src/controllers/session/login/index.js
+++ b/src/controllers/session/login/index.js
@@ -250,7 +250,7 @@ import cardBuilder from '../../../components/cardbuilder/cardBuilder';
             Dashboard.selectServer();
         });
 
-        view.addEventListener('viewshow', function (e) {
+        view.addEventListener('viewshow', function () {
             loading.show();
             libraryMenu.setTransparentMenu(true);
 
@@ -285,7 +285,7 @@ import cardBuilder from '../../../components/cardbuilder/cardBuilder';
                 view.querySelector('.disclaimer').textContent = options.LoginDisclaimer || '';
             });
         });
-        view.addEventListener('viewhide', function (e) {
+        view.addEventListener('viewhide', function () {
             libraryMenu.setTransparentMenu(false);
         });
     }
diff --git a/src/controllers/session/resetPassword/index.js b/src/controllers/session/resetPassword/index.js
index cc84d76fae..9697e386a7 100644
--- a/src/controllers/session/resetPassword/index.js
+++ b/src/controllers/session/resetPassword/index.js
@@ -24,7 +24,7 @@ import Dashboard from '../../../scripts/clientUtils';
         });
     }
 
-    export default function (view, params) {
+    export default function (view) {
         function onSubmit(e) {
             ApiClient.ajax({
                 type: 'POST',
diff --git a/src/controllers/shows/tvrecommended.js b/src/controllers/shows/tvrecommended.js
index 8d8f0fc82d..82baff8eb5 100644
--- a/src/controllers/shows/tvrecommended.js
+++ b/src/controllers/shows/tvrecommended.js
@@ -354,7 +354,7 @@ import autoFocuser from '../../components/autoFocuser';
 
         const tabControllers = [];
         let renderedTabs = [];
-        view.addEventListener('viewshow', function (e) {
+        view.addEventListener('viewshow', function () {
             initTabs();
             if (!view.getAttribute('data-title')) {
                 const parentId = params.topParentId;
@@ -374,12 +374,12 @@ import autoFocuser from '../../components/autoFocuser';
             Events.on(ApiClient, 'message', onWebSocketMessage);
             inputManager.on(window, onInputCommand);
         });
-        view.addEventListener('viewbeforehide', function (e) {
+        view.addEventListener('viewbeforehide', function () {
             inputManager.off(window, onInputCommand);
             Events.off(playbackManager, 'playbackstop', onPlaybackStop);
             Events.off(ApiClient, 'message', onWebSocketMessage);
         });
-        view.addEventListener('viewdestroy', function (e) {
+        view.addEventListener('viewdestroy', function () {
             tabControllers.forEach(function (t) {
                 if (t.destroy) {
                     t.destroy();
diff --git a/src/controllers/user/display/index.js b/src/controllers/user/display/index.js
index 322da73772..5d34539c35 100644
--- a/src/controllers/user/display/index.js
+++ b/src/controllers/user/display/index.js
@@ -9,7 +9,6 @@ import autoFocuser from '../../../components/autoFocuser';
 
     export default function (view, params) {
         let settingsInstance;
-        let hasChanges;
 
         const userId = params.userId || ApiClient.getCurrentUserId();
         const currentSettings = userId === ApiClient.getCurrentUserId() ? userSettings : new UserSettings();
@@ -30,10 +29,6 @@ import autoFocuser from '../../../components/autoFocuser';
             }
         });
 
-        view.addEventListener('change', function () {
-            hasChanges = true;
-        });
-
         view.addEventListener('viewdestroy', function () {
             if (settingsInstance) {
                 settingsInstance.destroy();
diff --git a/src/controllers/user/home/index.js b/src/controllers/user/home/index.js
index 37a2374b0d..45b0fd2f80 100644
--- a/src/controllers/user/home/index.js
+++ b/src/controllers/user/home/index.js
@@ -10,7 +10,6 @@ import '../../../components/listview/listview.scss';
 
     export default function (view, params) {
         let homescreenSettingsInstance;
-        let hasChanges;
 
         const userId = params.userId || ApiClient.getCurrentUserId();
         const currentSettings = userId === ApiClient.getCurrentUserId() ? userSettings : new UserSettings();
@@ -31,10 +30,6 @@ import '../../../components/listview/listview.scss';
             }
         });
 
-        view.addEventListener('change', function () {
-            hasChanges = true;
-        });
-
         view.addEventListener('viewdestroy', function () {
             if (homescreenSettingsInstance) {
                 homescreenSettingsInstance.destroy();
diff --git a/src/controllers/user/playback/index.js b/src/controllers/user/playback/index.js
index 793208cb6a..f0b4be6a25 100644
--- a/src/controllers/user/playback/index.js
+++ b/src/controllers/user/playback/index.js
@@ -11,7 +11,6 @@ import '../../../components/listview/listview.scss';
 
     export default function (view, params) {
         let settingsInstance;
-        let hasChanges;
 
         const userId = params.userId || ApiClient.getCurrentUserId();
         const currentSettings = userId === ApiClient.getCurrentUserId() ? userSettings : new UserSettings();
@@ -32,10 +31,6 @@ import '../../../components/listview/listview.scss';
             }
         });
 
-        view.addEventListener('change', function () {
-            hasChanges = true;
-        });
-
         view.addEventListener('viewdestroy', function () {
             if (settingsInstance) {
                 settingsInstance.destroy();
diff --git a/src/controllers/user/profile/index.js b/src/controllers/user/profile/index.js
index 4398de36e2..750bacab90 100644
--- a/src/controllers/user/profile/index.js
+++ b/src/controllers/user/profile/index.js
@@ -54,7 +54,7 @@ function onFileReaderError(evt) {
     }
 }
 
-function onFileReaderAbort(evt) {
+function onFileReaderAbort() {
     loading.hide();
     toast(globalize.translate('FileReadCancelled'));
 }
@@ -95,7 +95,7 @@ export default function (view, params) {
             });
         });
     });
-    view.querySelector('#btnAddImage').addEventListener('click', function (evt) {
+    view.querySelector('#btnAddImage').addEventListener('click', function () {
         view.querySelector('#uploadImage').click();
     });
     view.querySelector('#uploadImage').addEventListener('change', function (evt) {
diff --git a/src/controllers/user/subtitles/index.js b/src/controllers/user/subtitles/index.js
index deb86535df..87676df65f 100644
--- a/src/controllers/user/subtitles/index.js
+++ b/src/controllers/user/subtitles/index.js
@@ -9,7 +9,6 @@ import autoFocuser from '../../../components/autoFocuser';
 
     export default function (view, params) {
         let subtitleSettingsInstance;
-        let hasChanges;
 
         const userId = params.userId || ApiClient.getCurrentUserId();
         const currentSettings = userId === ApiClient.getCurrentUserId() ? userSettings : new UserSettings();
@@ -30,10 +29,6 @@ import autoFocuser from '../../../components/autoFocuser';
             }
         });
 
-        view.addEventListener('change', function () {
-            hasChanges = true;
-        });
-
         view.addEventListener('viewdestroy', function () {
             if (subtitleSettingsInstance) {
                 subtitleSettingsInstance.destroy();
diff --git a/src/controllers/wizard/finish/index.js b/src/controllers/wizard/finish/index.js
index 446d01e61c..e60653fd73 100644
--- a/src/controllers/wizard/finish/index.js
+++ b/src/controllers/wizard/finish/index.js
@@ -11,6 +11,6 @@ function onFinish() {
     });
 }
 
-export default function (view, params) {
+export default function (view) {
     view.querySelector('.btnWizardNext').addEventListener('click', onFinish);
 }
diff --git a/src/controllers/wizard/remote/index.js b/src/controllers/wizard/remote/index.js
index c5689e73bb..2b07bf89d1 100644
--- a/src/controllers/wizard/remote/index.js
+++ b/src/controllers/wizard/remote/index.js
@@ -31,7 +31,7 @@ function onSubmit(e) {
     return false;
 }
 
-export default function (view, params) {
+export default function (view) {
     view.querySelector('.wizardSettingsForm').addEventListener('submit', onSubmit);
     view.addEventListener('viewshow', function () {
         document.querySelector('.skinHeader').classList.add('noHomeButtonHeader');
diff --git a/src/controllers/wizard/settings/index.js b/src/controllers/wizard/settings/index.js
index 4a88e861f0..ac84c9ab1d 100644
--- a/src/controllers/wizard/settings/index.js
+++ b/src/controllers/wizard/settings/index.js
@@ -75,7 +75,7 @@ function onSubmit(e) {
     return false;
 }
 
-export default function (view, params) {
+export default function (view) {
     view.querySelector('.wizardSettingsForm').addEventListener('submit', onSubmit);
     view.addEventListener('viewshow', function () {
         document.querySelector('.skinHeader').classList.add('noHomeButtonHeader');
diff --git a/src/controllers/wizard/start/index.js b/src/controllers/wizard/start/index.js
index 3f524a870a..807804cb7a 100644
--- a/src/controllers/wizard/start/index.js
+++ b/src/controllers/wizard/start/index.js
@@ -32,7 +32,7 @@ function onSubmit() {
     return false;
 }
 
-export default function (view, params) {
+export default function (view) {
     $('.wizardStartForm', view).on('submit', onSubmit);
     view.addEventListener('viewshow', function () {
         document.querySelector('.skinHeader').classList.add('noHomeButtonHeader');
diff --git a/src/controllers/wizard/user/index.js b/src/controllers/wizard/user/index.js
index 693b3e02d7..b6b7618042 100644
--- a/src/controllers/wizard/user/index.js
+++ b/src/controllers/wizard/user/index.js
@@ -58,7 +58,7 @@ function onViewShow() {
     });
 }
 
-export default function (view, params) {
+export default function (view) {
     view.querySelector('.wizardUserForm').addEventListener('submit', onSubmit);
     view.addEventListener('viewshow', function () {
         document.querySelector('.skinHeader').classList.add('noHomeButtonHeader');
diff --git a/src/elements/emby-collapse/emby-collapse.js b/src/elements/emby-collapse/emby-collapse.js
index 3694d020f3..c4dfeeb5af 100644
--- a/src/elements/emby-collapse/emby-collapse.js
+++ b/src/elements/emby-collapse/emby-collapse.js
@@ -54,7 +54,7 @@ import '../emby-button/emby-button';
         });
     }
 
-    function onButtonClick(e) {
+    function onButtonClick() {
         const button = this;
         const collapseContent = button.parentNode.querySelector('.collapseContent');
 
diff --git a/src/elements/emby-itemscontainer/emby-itemscontainer.js b/src/elements/emby-itemscontainer/emby-itemscontainer.js
index 3d84ea6bed..37edb8224c 100644
--- a/src/elements/emby-itemscontainer/emby-itemscontainer.js
+++ b/src/elements/emby-itemscontainer/emby-itemscontainer.js
@@ -188,7 +188,7 @@ import Sortable from 'sortablejs';
         });
     }
 
-    function onSeriesTimerCreated(e, apiClient, data) {
+    function onSeriesTimerCreated() {
         const itemsContainer = this;
         if (getEventsToMonitor(itemsContainer).indexOf('seriestimers') !== -1) {
             itemsContainer.notifyRefreshNeeded();
diff --git a/src/elements/emby-playstatebutton/emby-playstatebutton.js b/src/elements/emby-playstatebutton/emby-playstatebutton.js
index d177ed0df6..c55abd01f1 100644
--- a/src/elements/emby-playstatebutton/emby-playstatebutton.js
+++ b/src/elements/emby-playstatebutton/emby-playstatebutton.js
@@ -20,7 +20,7 @@ import ServerConnections from '../../components/ServerConnections';
         }
     }
 
-    function onClick(e) {
+    function onClick() {
         const button = this;
         const id = button.getAttribute('data-id');
         const serverId = button.getAttribute('data-serverid');
diff --git a/src/elements/emby-progressring/emby-progressring.js b/src/elements/emby-progressring/emby-progressring.js
index 2a1b18d442..3572abca7e 100644
--- a/src/elements/emby-progressring/emby-progressring.js
+++ b/src/elements/emby-progressring/emby-progressring.js
@@ -15,7 +15,7 @@ import template from './emby-progressring.template.html';
         if (window.MutationObserver) {
             // create an observer instance
             const observer = new MutationObserver(function (mutations) {
-                mutations.forEach(function (mutation) {
+                mutations.forEach(function () {
                     instance.setProgress(parseFloat(instance.getAttribute('data-progress') || '0'));
                 });
             });
diff --git a/src/elements/emby-ratingbutton/emby-ratingbutton.js b/src/elements/emby-ratingbutton/emby-ratingbutton.js
index 18ab1aa9a1..5e279616e4 100644
--- a/src/elements/emby-ratingbutton/emby-ratingbutton.js
+++ b/src/elements/emby-ratingbutton/emby-ratingbutton.js
@@ -24,7 +24,7 @@ import ServerConnections from '../../components/ServerConnections';
         return apiClient.updateFavoriteStatus(apiClient.getCurrentUserId(), itemId, !isFavorite);
     }
 
-    function onClick(e) {
+    function onClick() {
         const button = this;
         const id = button.getAttribute('data-id');
         const serverId = button.getAttribute('data-serverid');
diff --git a/src/elements/emby-scrollbuttons/emby-scrollbuttons.js b/src/elements/emby-scrollbuttons/emby-scrollbuttons.js
index f174186259..d1cb4705bc 100644
--- a/src/elements/emby-scrollbuttons/emby-scrollbuttons.js
+++ b/src/elements/emby-scrollbuttons/emby-scrollbuttons.js
@@ -57,7 +57,7 @@ const EmbyScrollButtonsPrototype = Object.create(HTMLDivElement.prototype);
         }
     }
 
-    function onScroll(e) {
+    function onScroll() {
         const scrollButtons = this;
         const scroller = this.scroller;
 
@@ -117,7 +117,7 @@ const EmbyScrollButtonsPrototype = Object.create(HTMLDivElement.prototype);
         return scrollSize;
     }
 
-    function onScrollButtonClick(e) {
+    function onScrollButtonClick() {
         const scroller = this.parentNode.nextSibling;
 
         const direction = this.getAttribute('data-direction');
diff --git a/src/elements/emby-select/emby-select.js b/src/elements/emby-select/emby-select.js
index af71b1a77d..6a04a7af29 100644
--- a/src/elements/emby-select/emby-select.js
+++ b/src/elements/emby-select/emby-select.js
@@ -63,14 +63,14 @@ import 'webcomponents.js/webcomponents-lite';
         return elem;
     }
 
-    function onFocus(e) {
+    function onFocus() {
         const label = getLabel(this);
         if (label) {
             label.classList.add('selectLabelFocused');
         }
     }
 
-    function onBlur(e) {
+    function onBlur() {
         const label = getLabel(this);
         if (label) {
             label.classList.remove('selectLabelFocused');
diff --git a/src/elements/emby-slider/emby-slider.js b/src/elements/emby-slider/emby-slider.js
index 269f7a2962..5c05a393ef 100644
--- a/src/elements/emby-slider/emby-slider.js
+++ b/src/elements/emby-slider/emby-slider.js
@@ -105,7 +105,7 @@ import '../emby-input/emby-input';
         });
     }
 
-    function updateBubble(range, value, bubble, bubbleText) {
+    function updateBubble(range, value, bubble) {
         requestAnimationFrame(function () {
             const bubbleTrackRect = range.sliderBubbleTrack.getBoundingClientRect();
             const bubbleRect = bubble.getBoundingClientRect();
@@ -189,7 +189,7 @@ import '../emby-input/emby-input';
 
         let hasHideClass = sliderBubble.classList.contains('hide');
 
-        dom.addEventListener(this, 'input', function (e) {
+        dom.addEventListener(this, 'input', function () {
             this.dragging = true;
 
             if (this.dataset.sliderKeepProgress !== 'true') {
@@ -284,7 +284,7 @@ import '../emby-input/emby-input';
                 passive: true
             });
 
-            dom.addEventListener(this, 'touchend', function (e) {
+            dom.addEventListener(this, 'touchend', function () {
                 const range = this;
 
                 setTimeout(function () {
diff --git a/src/elements/emby-tabs/emby-tabs.js b/src/elements/emby-tabs/emby-tabs.js
index 45e3270c1f..9f259fe00a 100644
--- a/src/elements/emby-tabs/emby-tabs.js
+++ b/src/elements/emby-tabs/emby-tabs.js
@@ -15,12 +15,12 @@ import '../../assets/css/scrollstyles.scss';
         newButton.classList.add(activeButtonClass);
     }
 
-    function getTabPanel(tabs, index) {
+    function getTabPanel() {
         return null;
     }
 
-    function removeActivePanelClass(tabs, index) {
-        const tabPanel = getTabPanel(tabs, index);
+    function removeActivePanelClass() {
+        const tabPanel = getTabPanel();
         if (tabPanel) {
             tabPanel.classList.remove('is-active');
         }
@@ -48,10 +48,10 @@ import '../../assets/css/scrollstyles.scss';
             }
         }));
         if (previousIndex != null && previousIndex !== index) {
-            removeActivePanelClass(tabs, previousIndex);
+            removeActivePanelClass();
         }
 
-        const newPanel = getTabPanel(tabs, index);
+        const newPanel = getTabPanel();
 
         if (newPanel) {
             // animate new panel ?
@@ -291,13 +291,13 @@ import '../../assets/css/scrollstyles.scss';
         }
     };
 
-    EmbyTabs.triggerBeforeTabChange = function (selected) {
+    EmbyTabs.triggerBeforeTabChange = function () {
         const tabs = this;
 
         triggerBeforeTabChange(tabs, tabs.selectedIndex());
     };
 
-    EmbyTabs.triggerTabChange = function (selected) {
+    EmbyTabs.triggerTabChange = function () {
         const tabs = this;
 
         tabs.dispatchEvent(new CustomEvent('tabchange', {
diff --git a/src/plugins/chromecastPlayer/plugin.js b/src/plugins/chromecastPlayer/plugin.js
index 41341066b3..e597075907 100644
--- a/src/plugins/chromecastPlayer/plugin.js
+++ b/src/plugins/chromecastPlayer/plugin.js
@@ -428,7 +428,7 @@ class CastPlayer {
     /**
      * Callback function for media command success
      */
-    mediaCommandSuccessCallback(info, e) {
+    mediaCommandSuccessCallback(info) {
         console.debug(info);
     }
 }
@@ -507,7 +507,7 @@ function initializeChromecast() {
         }
     }));
 
-    Events.on(instance._castPlayer, 'connect', function (e) {
+    Events.on(instance._castPlayer, 'connect', function () {
         if (currentResolve) {
             sendConnectionResult(true);
         } else {
@@ -579,7 +579,7 @@ class ChromecastPlayer {
         new castSenderApiLoader().load().then(initializeChromecast.bind(this));
     }
 
-    tryPair(target) {
+    tryPair() {
         const castPlayer = this._castPlayer;
 
         if (castPlayer.deviceState !== DEVICE_STATE.ACTIVE && castPlayer.isInitialized) {
@@ -1058,11 +1058,11 @@ class ChromecastPlayer {
     getCurrentPlaylistItemId() {
     }
 
-    setCurrentPlaylistItem(playlistItemId) {
+    setCurrentPlaylistItem() {
         return Promise.resolve();
     }
 
-    removeFromPlaylist(playlistItemIds) {
+    removeFromPlaylist() {
         return Promise.resolve();
     }
 
diff --git a/src/plugins/htmlAudioPlayer/plugin.js b/src/plugins/htmlAudioPlayer/plugin.js
index fcabde15e5..446829a03e 100644
--- a/src/plugins/htmlAudioPlayer/plugin.js
+++ b/src/plugins/htmlAudioPlayer/plugin.js
@@ -135,7 +135,7 @@ class HtmlAudioPlayer {
 
                         const hls = new Hls({
                             manifestLoadingTimeOut: 20000,
-                            xhrSetup: function (xhr, url) {
+                            xhrSetup: function (xhr) {
                                 xhr.withCredentials = includeCorsCredentials;
                             }
                         });
@@ -280,7 +280,7 @@ class HtmlAudioPlayer {
             Events.trigger(self, 'playing');
         }
 
-        function onPlay(e) {
+        function onPlay() {
             Events.trigger(self, 'unpause');
         }
 
@@ -365,7 +365,7 @@ class HtmlAudioPlayer {
         }
     }
 
-    duration(val) {
+    duration() {
         const mediaElement = this._mediaElement;
         if (mediaElement) {
             const duration = mediaElement.duration;
diff --git a/src/plugins/pdfPlayer/plugin.js b/src/plugins/pdfPlayer/plugin.js
index 2b0d69ca36..40d6041ad6 100644
--- a/src/plugins/pdfPlayer/plugin.js
+++ b/src/plugins/pdfPlayer/plugin.js
@@ -189,7 +189,7 @@ export class PdfPlayer {
         const serverId = item.ServerId;
         const apiClient = ServerConnections.getApiClient(serverId);
 
-        return new Promise((resolve, reject) => {
+        return new Promise((resolve) => {
             const downloadHref = apiClient.getItemDownloadUrl(item.Id);
 
             this.bindEvents();
diff --git a/src/plugins/photoPlayer/plugin.js b/src/plugins/photoPlayer/plugin.js
index 2324ef8932..42ffd3c7dd 100644
--- a/src/plugins/photoPlayer/plugin.js
+++ b/src/plugins/photoPlayer/plugin.js
@@ -9,7 +9,7 @@ export default class PhotoPlayer {
     }
 
     play(options) {
-        return new Promise(function (resolve, reject) {
+        return new Promise(function (resolve) {
             import('../../components/slideshow/slideshow').then(({default: Slideshow}) => {
                 const index = options.startIndex || 0;
 
diff --git a/src/plugins/sessionPlayer/plugin.js b/src/plugins/sessionPlayer/plugin.js
index 2f9b6f926f..a165cd54c8 100644
--- a/src/plugins/sessionPlayer/plugin.js
+++ b/src/plugins/sessionPlayer/plugin.js
@@ -101,7 +101,7 @@ function processUpdatedSessions(instance, sessions, apiClient) {
     if (session) {
         normalizeImages(session, apiClient);
 
-        const eventNames = getChangedEvents(instance.lastPlayerData, session);
+        const eventNames = getChangedEvents(instance.lastPlayerData);
         instance.lastPlayerData = session;
 
         for (let i = 0, length = eventNames.length; i < length; i++) {
@@ -114,7 +114,7 @@ function processUpdatedSessions(instance, sessions, apiClient) {
     }
 }
 
-function getChangedEvents(state1, state2) {
+function getChangedEvents(state1) {
     const names = [];
 
     if (!state1) {
@@ -490,15 +490,15 @@ class SessionPlayer {
     getCurrentPlaylistItemId() {
     }
 
-    setCurrentPlaylistItem(playlistItemId) {
+    setCurrentPlaylistItem() {
         return Promise.resolve();
     }
 
-    removeFromPlaylist(playlistItemIds) {
+    removeFromPlaylist() {
         return Promise.resolve();
     }
 
-    tryPair(target) {
+    tryPair() {
         return Promise.resolve();
     }
 }
diff --git a/src/plugins/youtubePlayer/plugin.js b/src/plugins/youtubePlayer/plugin.js
index f04022a52c..50edabccf2 100644
--- a/src/plugins/youtubePlayer/plugin.js
+++ b/src/plugins/youtubePlayer/plugin.js
@@ -24,7 +24,7 @@ function zoomIn(elem, iterations) {
 }
 
 function createMediaElement(instance, options) {
-    return new Promise(function (resolve, reject) {
+    return new Promise(function (resolve) {
         const dlg = document.querySelector('.youtubePlayerContainer');
 
         if (!dlg) {
@@ -111,7 +111,7 @@ function onPlayerReady(event) {
     event.target.playVideo();
 }
 
-function onTimeUpdate(e) {
+function onTimeUpdate() {
     Events.trigger(this, 'timeupdate');
 }
 
@@ -242,7 +242,7 @@ class YoutubePlayer {
 
         return mediaType === 'audio' || mediaType === 'video';
     }
-    canPlayItem(item) {
+    canPlayItem() {
         // Does not play server items
         return false;
     }
@@ -255,12 +255,12 @@ class YoutubePlayer {
     currentSrc() {
         return this._currentSrc;
     }
-    setSubtitleStreamIndex(index) {
+    setSubtitleStreamIndex() {
     }
     canSetAudioStreamIndex() {
         return false;
     }
-    setAudioStreamIndex(index) {
+    setAudioStreamIndex() {
     }
     // Save this for when playback stops, because querying the time at that point might return 0
     currentTime(val) {
@@ -275,7 +275,7 @@ class YoutubePlayer {
             return currentYoutubePlayer.getCurrentTime() * 1000;
         }
     }
-    duration(val) {
+    duration() {
         const currentYoutubePlayer = this.currentYoutubePlayer;
 
         if (currentYoutubePlayer) {
diff --git a/src/scripts/browser.js b/src/scripts/browser.js
index ea384bd060..fc0a5d4435 100644
--- a/src/scripts/browser.js
+++ b/src/scripts/browser.js
@@ -138,19 +138,19 @@ function supportsCssAnimation(allowPrefix) {
 const uaMatch = function (ua) {
     ua = ua.toLowerCase();
 
-    const match = /(edg)[ \/]([\w.]+)/.exec(ua) ||
-        /(edga)[ \/]([\w.]+)/.exec(ua) ||
-        /(edgios)[ \/]([\w.]+)/.exec(ua) ||
-        /(edge)[ \/]([\w.]+)/.exec(ua) ||
-        /(opera)[ \/]([\w.]+)/.exec(ua) ||
-        /(opr)[ \/]([\w.]+)/.exec(ua) ||
-        /(chrome)[ \/]([\w.]+)/.exec(ua) ||
-        /(safari)[ \/]([\w.]+)/.exec(ua) ||
-        /(firefox)[ \/]([\w.]+)/.exec(ua) ||
+    const match = /(edg)[ /]([\w.]+)/.exec(ua) ||
+        /(edga)[ /]([\w.]+)/.exec(ua) ||
+        /(edgios)[ /]([\w.]+)/.exec(ua) ||
+        /(edge)[ /]([\w.]+)/.exec(ua) ||
+        /(opera)[ /]([\w.]+)/.exec(ua) ||
+        /(opr)[ /]([\w.]+)/.exec(ua) ||
+        /(chrome)[ /]([\w.]+)/.exec(ua) ||
+        /(safari)[ /]([\w.]+)/.exec(ua) ||
+        /(firefox)[ /]([\w.]+)/.exec(ua) ||
         ua.indexOf('compatible') < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
         [];
 
-    const versionMatch = /(version)[ \/]([\w.]+)/.exec(ua);
+    const versionMatch = /(version)[ /]([\w.]+)/.exec(ua);
 
     let platform_match = /(ipad)/.exec(ua) ||
         /(iphone)/.exec(ua) ||
diff --git a/src/scripts/clientUtils.js b/src/scripts/clientUtils.js
index a7941d88c6..cc51bc1b81 100644
--- a/src/scripts/clientUtils.js
+++ b/src/scripts/clientUtils.js
@@ -19,12 +19,6 @@ export async function serverAddress() {
         return Promise.resolve(apiClient.serverAddress());
     }
 
-    const current = await ServerConnections.getAvailableServers().then(servers => {
-        if (servers.length !== 0) {
-            return Promise.resolve(servers[0].ManualAddress);
-        }
-    });
-
     // TODO this makes things faster but it also blocks the wizard in some scenarios
     // if (current) return Promise.resolve(current);
 
@@ -50,7 +44,7 @@ export async function serverAddress() {
                 url: url,
                 response: resp
             };
-        }).catch(error => {
+        }).catch(() => {
             return Promise.resolve();
         });
     });
@@ -117,7 +111,7 @@ export function processPluginConfigurationUpdateResult() {
     toast(globalize.translate('SettingsSaved'));
 }
 
-export function processServerConfigurationUpdateResult(result) {
+export function processServerConfigurationUpdateResult() {
     loading.hide();
     toast(globalize.translate('SettingsSaved'));
 }
diff --git a/src/scripts/gamepadtokey.js b/src/scripts/gamepadtokey.js
index e8c2d36677..d7916f1fef 100644
--- a/src/scripts/gamepadtokey.js
+++ b/src/scripts/gamepadtokey.js
@@ -365,7 +365,7 @@ function isGamepadConnected() {
     return false;
 }
 
-function onFocusOrGamepadAttach(e) {
+function onFocusOrGamepadAttach() {
     /* eslint-disable-next-line compat/compat */
     if (isGamepadConnected() && document.hasFocus()) {
         console.log('Gamepad connected! Starting input loop');
@@ -373,7 +373,7 @@ function onFocusOrGamepadAttach(e) {
     }
 }
 
-function onFocusOrGamepadDetach(e) {
+function onFocusOrGamepadDetach() {
     /* eslint-disable-next-line compat/compat */
     if (!isGamepadConnected() || !document.hasFocus()) {
         console.log('Gamepad disconnected! No other gamepads are connected, stopping input loop');
diff --git a/src/scripts/globalize.js b/src/scripts/globalize.js
index e3e70ada1d..dfd9071957 100644
--- a/src/scripts/globalize.js
+++ b/src/scripts/globalize.js
@@ -155,7 +155,7 @@ import { Events } from 'jellyfin-apiclient';
             });
         }
 
-        return new Promise(function (resolve, reject) {
+        return new Promise(function (resolve) {
             if (!filtered.length) {
                 resolve();
                 return;
diff --git a/src/scripts/keyboardNavigation.js b/src/scripts/keyboardNavigation.js
index e10110d5c5..ff011f387c 100644
--- a/src/scripts/keyboardNavigation.js
+++ b/src/scripts/keyboardNavigation.js
@@ -152,7 +152,7 @@ export function enable() {
 
 // Gamepad initialisation. No script is required if no gamepads are present at init time, saving a bit of resources.
 // Whenever the gamepad is connected, we hand all the control of the gamepad to gamepadtokey.js by removing the event handler
-function attachGamepadScript(e) {
+function attachGamepadScript() {
     console.log('Gamepad connected! Attaching gamepadtokey.js script');
     window.removeEventListener('gamepadconnected', attachGamepadScript);
     /* eslint-disable-next-line  @babel/no-unused-expressions */
diff --git a/src/scripts/libraryMenu.js b/src/scripts/libraryMenu.js
index c9ad29ddff..e3087cded3 100644
--- a/src/scripts/libraryMenu.js
+++ b/src/scripts/libraryMenu.js
@@ -164,7 +164,7 @@ import Headroom from 'headroom.js';
         inputManager.handleCommand('search');
     }
 
-    function onHeaderUserButtonClick(e) {
+    function onHeaderUserButtonClick() {
         Dashboard.navigate('mypreferencesmenu.html');
     }
 
@@ -206,7 +206,7 @@ import Headroom from 'headroom.js';
         Events.on(playbackManager, 'playbackstop', onPlaybackStop);
     }
 
-    function onPlaybackStart(e) {
+    function onPlaybackStart() {
         if (playbackManager.isPlayingAudio() && layoutManager.tv) {
             headerAudioPlayerButton.classList.remove('hide');
         } else {
@@ -243,7 +243,7 @@ import Headroom from 'headroom.js';
         }
     }
 
-    function onSyncPlaySyncing(event, is_syncing, syncMethod) {
+    function onSyncPlaySyncing(event, is_syncing) {
         const icon = headerSyncButton.querySelector('span');
         icon.classList.remove('sync', 'sync_disabled', 'sync_problem');
         if (is_syncing) {
@@ -281,7 +281,7 @@ import Headroom from 'headroom.js';
         navDrawerInstance.close();
     }
 
-    function onMainDrawerSelect(e) {
+    function onMainDrawerSelect() {
         if (navDrawerInstance.isVisible) {
             onMainDrawerOpened();
         } else {
@@ -289,7 +289,7 @@ import Headroom from 'headroom.js';
         }
     }
 
-    function refreshLibraryInfoInDrawer(user, drawer) {
+    function refreshLibraryInfoInDrawer(user) {
         let html = '';
         html += '<div style="height:.5em;"></div>';
         html += '<a is="emby-linkbutton" class="navMenuOption lnkMediaFolder" href="#!/home.html"><span class="material-icons navMenuOptionIcon home"></span><span class="navMenuOptionText">' + globalize.translate('Home') + '</span></a>';
@@ -538,7 +538,7 @@ import Headroom from 'headroom.js';
     }
 
     function getToolsMenuLinks(apiClient) {
-        return apiClient.getJSON(apiClient.getUrl('web/configurationpages') + '?pageType=PluginConfiguration&EnableInMainMenu=true').then(createToolsMenuList, function (err) {
+        return apiClient.getJSON(apiClient.getUrl('web/configurationpages') + '?pageType=PluginConfiguration&EnableInMainMenu=true').then(createToolsMenuList, function () {
             return createToolsMenuList([]);
         });
     }
@@ -862,7 +862,7 @@ import Headroom from 'headroom.js';
         navDrawerElement = document.querySelector('.mainDrawer');
         navDrawerScrollContainer = navDrawerElement.querySelector('.scrollContainer');
         navDrawerScrollContainer.addEventListener('click', onMainDrawerClick);
-        return new Promise(function (resolve, reject) {
+        return new Promise(function (resolve) {
             import('../libraries/navdrawer/navdrawer').then(({ NavigationDrawer }) => {
                 navDrawerInstance = new NavigationDrawer(getNavDrawerOptions());
 
@@ -955,7 +955,7 @@ import Headroom from 'headroom.js';
     }
 
     let currentPageType;
-    pageClassOn('pagebeforeshow', 'page', function (e) {
+    pageClassOn('pagebeforeshow', 'page', function () {
         if (!this.classList.contains('withTabs')) {
             LibraryMenu.setTabs(null);
         }
diff --git a/src/scripts/playlists.js b/src/scripts/playlists.js
index 3886d929cf..b8e5d746e0 100644
--- a/src/scripts/playlists.js
+++ b/src/scripts/playlists.js
@@ -8,7 +8,7 @@ import * as userSettings from './settings/userSettings';
 import '../elements/emby-itemscontainer/emby-itemscontainer';
 import Dashboard from './clientUtils';
 
-export default function (view, params) {
+export default function (view) {
     function getPageData(context) {
         const key = getSavedQueryKey(context);
         let pageData = data[key];
diff --git a/src/scripts/site.js b/src/scripts/site.js
index 7569c64f28..03084aa4c5 100644
--- a/src/scripts/site.js
+++ b/src/scripts/site.js
@@ -55,7 +55,7 @@ window.getWindowLocationSearch = function(win) {
 
 // TODO: Move this elsewhere
 window.getParameterByName = function(name, url) {
-    name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
+    name = name.replace(/[[]/, '\\[').replace(/[\]]/, '\\]');
     const regexS = '[\\?&]' + name + '=([^&#]*)';
     const regex = new RegExp(regexS, 'i');
     const results = regex.exec(url || getWindowLocationSearch());
diff --git a/src/scripts/themeManager.js b/src/scripts/themeManager.js
index fb2792fbd9..ad7f7887a9 100644
--- a/src/scripts/themeManager.js
+++ b/src/scripts/themeManager.js
@@ -37,7 +37,7 @@ function getThemeStylesheetInfo(id) {
 }
 
 function setTheme(id) {
-    return new Promise(function (resolve, reject) {
+    return new Promise(function (resolve) {
         if (currentThemeId && currentThemeId === id) {
             resolve();
             return;