diff --git a/src/components/apphost.js b/src/components/apphost.js
index 36feb896f3..39cfabbe4c 100644
--- a/src/components/apphost.js
+++ b/src/components/apphost.js
@@ -275,7 +275,7 @@ const supportedFeatures = function () {
      */
 function doExit() {
     try {
-        if (window.NativeShell) {
+        if (window.NativeShell?.AppHost?.exit) {
             window.NativeShell.AppHost.exit();
         } else if (browser.tizen) {
             tizen.application.getCurrentApplication().exit();
@@ -360,16 +360,20 @@ export const appHost = {
         };
     },
     deviceName: function () {
-        return window.NativeShell ? window.NativeShell.AppHost.deviceName() : getDeviceName();
+        return window.NativeShell?.AppHost?.deviceName
+            ? window.NativeShell.AppHost.deviceName() : getDeviceName();
     },
     deviceId: function () {
-        return window.NativeShell ? window.NativeShell.AppHost.deviceId() : getDeviceId();
+        return window.NativeShell?.AppHost?.deviceId
+            ? window.NativeShell.AppHost.deviceId() : getDeviceId();
     },
     appName: function () {
-        return window.NativeShell ? window.NativeShell.AppHost.appName() : appName;
+        return window.NativeShell?.AppHost?.appName
+            ? window.NativeShell.AppHost.appName() : appName;
     },
     appVersion: function () {
-        return window.NativeShell ? window.NativeShell.AppHost.appVersion() : appVersion;
+        return window.NativeShell?.AppHost?.appVersion
+            ? window.NativeShell.AppHost.appVersion() : appVersion;
     },
     getPushTokenInfo: function () {
         return {};
diff --git a/src/components/playback/playbackmanager.js b/src/components/playback/playbackmanager.js
index 6defed364a..41d97f506d 100644
--- a/src/components/playback/playbackmanager.js
+++ b/src/components/playback/playbackmanager.js
@@ -429,7 +429,7 @@ function getPlaybackInfo(player,
     enableDirectStream,
     allowVideoStreamCopy,
     allowAudioStreamCopy) {
-    if (!itemHelper.isLocalItem(item) && item.MediaType === 'Audio') {
+    if (!itemHelper.isLocalItem(item) && item.MediaType === 'Audio' && !player.useServerPlaybackInfoForAudio) {
         return Promise.resolve({
             MediaSources: [
                 {
@@ -1692,7 +1692,7 @@ class PlaybackManager {
                     if (validatePlaybackInfoResult(self, result)) {
                         currentMediaSource = result.MediaSources[0];
 
-                        const streamInfo = createStreamInfo(apiClient, currentItem.MediaType, currentItem, currentMediaSource, ticks);
+                        const streamInfo = createStreamInfo(apiClient, currentItem.MediaType, currentItem, currentMediaSource, ticks, player);
                         streamInfo.fullscreen = currentPlayOptions.fullscreen;
                         streamInfo.lastMediaInfoQuery = lastMediaInfoQuery;
 
@@ -2272,7 +2272,7 @@ class PlaybackManager {
                 playOptions.items = null;
 
                 return getPlaybackMediaSource(player, apiClient, deviceProfile, maxBitrate, item, startPosition, mediaSourceId, audioStreamIndex, subtitleStreamIndex).then(function (mediaSource) {
-                    const streamInfo = createStreamInfo(apiClient, item.MediaType, item, mediaSource, startPosition);
+                    const streamInfo = createStreamInfo(apiClient, item.MediaType, item, mediaSource, startPosition, player);
 
                     streamInfo.fullscreen = playOptions.fullscreen;
 
@@ -2311,7 +2311,7 @@ class PlaybackManager {
 
                 return player.getDeviceProfile(item).then(function (deviceProfile) {
                     return getPlaybackMediaSource(player, apiClient, deviceProfile, maxBitrate, item, startPosition, options.mediaSourceId, options.audioStreamIndex, options.subtitleStreamIndex).then(function (mediaSource) {
-                        return createStreamInfo(apiClient, item.MediaType, item, mediaSource, startPosition);
+                        return createStreamInfo(apiClient, item.MediaType, item, mediaSource, startPosition, player);
                     });
                 });
             });
@@ -2337,7 +2337,7 @@ class PlaybackManager {
             });
         };
 
-        function createStreamInfo(apiClient, type, item, mediaSource, startPosition) {
+        function createStreamInfo(apiClient, type, item, mediaSource, startPosition, player) {
             let mediaUrl;
             let contentType;
             let transcodingOffsetTicks = 0;
@@ -2349,6 +2349,14 @@ class PlaybackManager {
             const mediaSourceContainer = (mediaSource.Container || '').toLowerCase();
             let directOptions;
 
+            if (mediaSource.MediaStreams && player.useFullSubtitleUrls) {
+                mediaSource.MediaStreams.forEach(stream => {
+                    if (stream.DeliveryUrl && stream.DeliveryUrl.startsWith('/')) {
+                        stream.DeliveryUrl = apiClient.getUrl(stream.DeliveryUrl);
+                    }
+                });
+            }
+
             if (type === 'Video' || type === 'Audio') {
                 contentType = getMimeType(type.toLowerCase(), mediaSourceContainer);
 
diff --git a/src/components/pluginManager.js b/src/components/pluginManager.js
index 985b76725f..5281e4d46f 100644
--- a/src/components/pluginManager.js
+++ b/src/components/pluginManager.js
@@ -3,6 +3,11 @@ import globalize from '../scripts/globalize';
 import loading from './loading/loading';
 import appSettings from '../scripts/settings/appSettings';
 import { playbackManager } from './playback/playbackmanager';
+import { appHost } from '../components/apphost';
+import { appRouter } from '../components/appRouter';
+import * as inputManager from '../scripts/inputManager';
+import toast from '../components/toast/toast';
+import confirm from '../components/confirm/confirm';
 
 /* eslint-disable indent */
 
@@ -90,7 +95,13 @@ import { playbackManager } from './playback/playbackmanager';
                         events: Events,
                         loading,
                         appSettings,
-                        playbackManager
+                        playbackManager,
+                        globalize,
+                        appHost,
+                        appRouter,
+                        inputManager,
+                        toast,
+                        confirm
                     });
                 } else {
                     console.debug(`Loading plugin (via dynamic import): ${pluginSpec}`);
diff --git a/src/components/syncPlay/core/PlaybackCore.js b/src/components/syncPlay/core/PlaybackCore.js
index 12e0c67abb..2cab13e784 100644
--- a/src/components/syncPlay/core/PlaybackCore.js
+++ b/src/components/syncPlay/core/PlaybackCore.js
@@ -118,9 +118,11 @@ class PlaybackCore {
      * Sends a buffering request to the server.
      * @param {boolean} isBuffering Whether this client is buffering or not.
      */
-    sendBufferingRequest(isBuffering = true) {
+    async sendBufferingRequest(isBuffering = true) {
         const playerWrapper = this.manager.getPlayerWrapper();
-        const currentPosition = playerWrapper.currentTime();
+        const currentPosition = (playerWrapper.currentTimeAsync
+            ? await playerWrapper.currentTimeAsync()
+            : playerWrapper.currentTime());
         const currentPositionTicks = Math.round(currentPosition * Helper.TicksPerMillisecond);
         const isPlaying = playerWrapper.isPlaying();
 
@@ -155,7 +157,7 @@ class PlaybackCore {
      * Applies a command and checks the playback state if a duplicate command is received.
      * @param {Object} command The playback command.
      */
-    applyCommand(command) {
+    async applyCommand(command) {
         // Check if duplicate.
         if (this.lastCommand &&
             this.lastCommand.When.getTime() === command.When.getTime() &&
@@ -177,7 +179,9 @@ class PlaybackCore {
             } else {
                 // Check if playback state matches requested command.
                 const playerWrapper = this.manager.getPlayerWrapper();
-                const currentPositionTicks = Math.round(playerWrapper.currentTime() * Helper.TicksPerMillisecond);
+                const currentPositionTicks = Math.round((playerWrapper.currentTimeAsync
+                    ? await playerWrapper.currentTimeAsync()
+                    : playerWrapper.currentTime()) * Helper.TicksPerMillisecond);
                 const isPlaying = playerWrapper.isPlaying();
 
                 switch (command.Command) {
@@ -255,14 +259,16 @@ class PlaybackCore {
      * @param {Date} playAtTime The server's UTC time at which to resume playback.
      * @param {number} positionTicks The PositionTicks from where to resume.
      */
-    scheduleUnpause(playAtTime, positionTicks) {
+    async scheduleUnpause(playAtTime, positionTicks) {
         this.clearScheduledCommand();
         const enableSyncTimeout = this.maxDelaySpeedToSync / 2.0;
         const currentTime = new Date();
         const playAtTimeLocal = this.timeSyncCore.remoteDateToLocal(playAtTime);
 
         const playerWrapper = this.manager.getPlayerWrapper();
-        const currentPositionTicks = playerWrapper.currentTime() * Helper.TicksPerMillisecond;
+        const currentPositionTicks = (playerWrapper.currentTimeAsync
+            ? await playerWrapper.currentTimeAsync()
+            : playerWrapper.currentTime()) * Helper.TicksPerMillisecond;
 
         if (playAtTimeLocal > currentTime) {
             const playTimeout = playAtTimeLocal - currentTime;
diff --git a/src/components/syncPlay/core/QueueCore.js b/src/components/syncPlay/core/QueueCore.js
index 30fddf5f26..81feac0aca 100644
--- a/src/components/syncPlay/core/QueueCore.js
+++ b/src/components/syncPlay/core/QueueCore.js
@@ -167,14 +167,16 @@ class QueueCore {
      * @param {string} origin The origin of the wait call, used for debug.
      */
     scheduleReadyRequestOnPlaybackStart(apiClient, origin) {
-        Helper.waitForEventOnce(this.manager, 'playbackstart', Helper.WaitForEventDefaultTimeout, ['playbackerror']).then(() => {
+        Helper.waitForEventOnce(this.manager, 'playbackstart', Helper.WaitForEventDefaultTimeout, ['playbackerror']).then(async () => {
             console.debug('SyncPlay scheduleReadyRequestOnPlaybackStart: local pause and notify server.');
             const playerWrapper = this.manager.getPlayerWrapper();
             playerWrapper.localPause();
 
             const currentTime = new Date();
             const now = this.manager.timeSyncCore.localDateToRemote(currentTime);
-            const currentPosition = playerWrapper.currentTime();
+            const currentPosition = (playerWrapper.currentTimeAsync
+                ? await playerWrapper.currentTimeAsync()
+                : playerWrapper.currentTime());
             const currentPositionTicks = Math.round(currentPosition * Helper.TicksPerMillisecond);
             const isPlaying = playerWrapper.isPlaying();
 
diff --git a/src/components/syncPlay/core/players/PlayerFactory.js b/src/components/syncPlay/core/players/PlayerFactory.js
index 709680cf63..1de9aa5126 100644
--- a/src/components/syncPlay/core/players/PlayerFactory.js
+++ b/src/components/syncPlay/core/players/PlayerFactory.js
@@ -44,13 +44,15 @@ class PlayerFactory {
             return this.getDefaultWrapper(syncPlayManager);
         }
 
-        console.debug('SyncPlay WrapperFactory getWrapper:', player.id);
-        const Wrapper = this.wrappers[player.id];
+        const playerId = player.syncPlayWrapAs || player.id;
+
+        console.debug('SyncPlay WrapperFactory getWrapper:', playerId);
+        const Wrapper = this.wrappers[playerId];
         if (Wrapper) {
             return new Wrapper(player, syncPlayManager);
         }
 
-        console.debug(`SyncPlay WrapperFactory getWrapper: unknown player ${player.id}, using default wrapper.`);
+        console.debug(`SyncPlay WrapperFactory getWrapper: unknown player ${playerId}, using default wrapper.`);
         return this.getDefaultWrapper(syncPlayManager);
     }
 
diff --git a/src/components/syncPlay/ui/playbackPermissionManager.js b/src/components/syncPlay/ui/playbackPermissionManager.js
index e2d7ef2f4c..41c2dc84d3 100644
--- a/src/components/syncPlay/ui/playbackPermissionManager.js
+++ b/src/components/syncPlay/ui/playbackPermissionManager.js
@@ -1,3 +1,5 @@
+import { appHost } from '../../apphost';
+
 /**
  * Creates an audio element that plays a silent sound.
  * @returns {HTMLMediaElement} The audio element.
@@ -33,6 +35,10 @@ class PlaybackPermissionManager {
      * @returns {Promise} Promise that resolves succesfully if playback permission is allowed.
      */
     check () {
+        if (appHost.supports('htmlaudioautoplay')) {
+            return Promise.resolve(true);
+        }
+
         return new Promise((resolve, reject) => {
             const media = createTestMediaElement();
             media.play().then(() => {
diff --git a/src/components/syncPlay/ui/players/HtmlVideoPlayer.js b/src/components/syncPlay/ui/players/HtmlVideoPlayer.js
index cc045d4954..16d26cd1c2 100644
--- a/src/components/syncPlay/ui/players/HtmlVideoPlayer.js
+++ b/src/components/syncPlay/ui/players/HtmlVideoPlayer.js
@@ -17,6 +17,16 @@ class HtmlVideoPlayer extends NoActivePlayer {
         this.isPlayerActive = false;
         this.savedPlaybackRate = 1.0;
         this.minBufferingThresholdMillis = 3000;
+
+        if (player.currentTimeAsync) {
+            /**
+             * Gets current playback position.
+             * @returns {Promise<number>} The player position, in milliseconds.
+             */
+            this.currentTimeAsync = () => {
+                return this.player.currentTimeAsync();
+            };
+        }
     }
 
     /**
diff --git a/src/components/upnextdialog/upnextdialog.js b/src/components/upnextdialog/upnextdialog.js
index cb40cfcbc8..2284975f13 100644
--- a/src/components/upnextdialog/upnextdialog.js
+++ b/src/components/upnextdialog/upnextdialog.js
@@ -94,13 +94,13 @@ import '../../assets/css/flexstyles.scss';
         }
     }
 
-    function onStartNowClick() {
+    async function onStartNowClick() {
         const options = this.options;
 
         if (options) {
             const player = options.player;
 
-            this.hide();
+            await this.hide();
 
             playbackManager.nextTrack(player);
         }
@@ -139,7 +139,7 @@ import '../../assets/css/flexstyles.scss';
         Events.trigger(instance, 'hide');
     }
 
-    function hideComingUpNext() {
+    async function hideComingUpNext() {
         const instance = this;
         clearCountdownTextTimeout(this);
 
@@ -159,17 +159,21 @@ import '../../assets/css/flexstyles.scss';
             return;
         }
 
-        // trigger a reflow to force it to animate again
-        void elem.offsetWidth;
-
-        elem.classList.add('upNextDialog-hidden');
-
         const fn = onHideAnimationComplete.bind(instance);
         instance._onHideAnimationComplete = fn;
 
-        dom.addEventListener(elem, transitionEndEventName, fn, {
-            once: true
+        const transitionEvent = await new Promise((resolve) => {
+            dom.addEventListener(elem, transitionEndEventName, resolve, {
+                once: true
+            });
+
+            // trigger a reflow to force it to animate again
+            void elem.offsetWidth;
+
+            elem.classList.add('upNextDialog-hidden');
         });
+
+        instance._onHideAnimationComplete(transitionEvent);
     }
 
     function getTimeRemainingMs(instance) {
@@ -226,8 +230,8 @@ class UpNextDialog {
 
         startComingUpNextHideTimer(this);
     }
-    hide() {
-        hideComingUpNext.call(this);
+    async hide() {
+        await hideComingUpNext.bind(this)();
     }
     destroy() {
         hideComingUpNext.call(this);
diff --git a/src/controllers/playback/video/index.js b/src/controllers/playback/video/index.js
index d7e8fd5bf2..6744d26d51 100644
--- a/src/controllers/playback/video/index.js
+++ b/src/controllers/playback/video/index.js
@@ -313,8 +313,8 @@ import { appRouter } from '../../../components/appRouter';
 
         function onPointerMove(e) {
             if ((e.pointerType || (layoutManager.mobile ? 'touch' : 'mouse')) === 'mouse') {
-                const eventX = e.screenX || 0;
-                const eventY = e.screenY || 0;
+                const eventX = e.screenX || e.clientX || 0;
+                const eventY = e.screenY || e.clientY || 0;
                 const obj = lastPointerMoveData;
 
                 if (!obj) {
diff --git a/src/scripts/mouseManager.js b/src/scripts/mouseManager.js
index 3f37dfbd9e..1ad3389c04 100644
--- a/src/scripts/mouseManager.js
+++ b/src/scripts/mouseManager.js
@@ -54,8 +54,8 @@ import dom from '../scripts/dom';
 
     let lastPointerMoveData;
     function onPointerMove(e) {
-        const eventX = e.screenX;
-        const eventY = e.screenY;
+        const eventX = e.screenX || e.clientX;
+        const eventY = e.screenY || e.clientY;
 
         // if coord don't exist how could it move
         if (typeof eventX === 'undefined' && typeof eventY === 'undefined') {
diff --git a/src/scripts/shell.js b/src/scripts/shell.js
index 006d0433ff..aba8698cdb 100644
--- a/src/scripts/shell.js
+++ b/src/scripts/shell.js
@@ -1,30 +1,40 @@
 // TODO: This seems like a good candidate for deprecation
 export default {
     enableFullscreen: function() {
-        window.NativeShell?.enableFullscreen();
+        if (window.NativeShell?.enableFullscreen) {
+            window.NativeShell.enableFullscreen();
+        }
     },
     disableFullscreen: function() {
-        window.NativeShell?.disableFullscreen();
+        if (window.NativeShell?.disableFullscreen) {
+            window.NativeShell.disableFullscreen();
+        }
     },
     openUrl: function(url, target) {
-        if (window.NativeShell) {
+        if (window.NativeShell?.openUrl) {
             window.NativeShell.openUrl(url, target);
         } else {
             window.open(url, target || '_blank');
         }
     },
     updateMediaSession(mediaInfo) {
-        window.NativeShell?.updateMediaSession(mediaInfo);
+        if (window.NativeShell?.updateMediaSession) {
+            window.NativeShell.updateMediaSession(mediaInfo);
+        }
     },
     hideMediaSession() {
-        window.NativeShell?.hideMediaSession();
+        if (window.NativeShell?.hideMediaSession) {
+            window.NativeShell.hideMediaSession();
+        }
     },
     /**
      * Notify the NativeShell about volume level changes.
      * Useful for e.g. remote playback.
      */
     updateVolumeLevel(volume) {
-        window.NativeShell?.updateVolumeLevel(volume);
+        if (window.NativeShell?.updateVolumeLevel) {
+            window.NativeShell.updateVolumeLevel(volume);
+        }
     },
     /**
      * Download specified files with NativeShell if possible
@@ -32,7 +42,7 @@ export default {
      * @returns true on success
      */
     downloadFiles(items) {
-        if (window.NativeShell) {
+        if (window.NativeShell?.downloadFile) {
             items.forEach(item => window.NativeShell.downloadFile(item));
             return true;
         }