diff --git a/.eslintrc.yml b/.eslintrc.yml
index a3348b70d7..0b92c0c9b0 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -22,6 +22,7 @@ extends:
   - plugin:import/errors
   - plugin:import/warnings
   - plugin:eslint-comments/recommended
+  - plugin:compat/recommended
 
 globals:
   # Browser globals
@@ -85,3 +86,86 @@ rules:
   promise/no-return-wrap: ["warn"]
   # TODO: Remove after ES6 migration is complete
   import/no-unresolved: ["warn"]
+
+settings:
+  polyfills:
+    # Native Promises Only
+    - Promise
+    # whatwg-fetch
+    - fetch
+    # document-register-element
+    - document.registerElement
+    # resize-observer-polyfill
+    - ResizeObserver
+    # fast-text-encoding
+    - TextEncoder
+    # intersection-observer
+    - IntersectionObserver
+    # Core-js
+    - Object.assign
+    - Object.is
+    - Object.setPrototypeOf
+    - Object.toString
+    - Object.freeze
+    - Object.seal
+    - Object.preventExtensions
+    - Object.isFrozen
+    - Object.isSealed
+    - Object.isExtensible
+    - Object.getOwnPropertyDescriptor
+    - Object.getPrototypeOf
+    - Object.keys
+    - Object.getOwnPropertyNames
+    - Function.name
+    - Function.hasInstance
+    - Array.from
+    - Array.arrayOf
+    - Array.copyWithin
+    - Array.fill
+    - Array.find
+    - Array.findIndex
+    - Array.iterator
+    - String.fromCodePoint
+    - String.raw
+    - String.iterator
+    - String.codePointAt
+    - String.endsWith
+    - String.includes
+    - String.repeat
+    - String.startsWith
+    - String.trim
+    - String.anchor
+    - String.big
+    - String.blink
+    - String.bold
+    - String.fixed
+    - String.fontcolor
+    - String.fontsize
+    - String.italics
+    - String.link
+    - String.small
+    - String.strike
+    - String.sub
+    - String.sup
+    - RegExp
+    - Number
+    - Math
+    - Date
+    - async
+    - Symbol
+    - Map
+    - Set
+    - WeakMap
+    - WeakSet
+    - ArrayBuffer
+    - DataView
+    - Int8Array
+    - Uint8Array
+    - Uint8ClampedArray
+    - Int16Array
+    - Uint16Array
+    - Int32Array
+    - Uint32Array
+    - Float32Array
+    - Float64Array
+    - Reflect
diff --git a/package.json b/package.json
index bd5a4f6def..4eb8096b69 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
     "cssnano": "^4.1.10",
     "del": "^5.1.0",
     "eslint": "^6.8.0",
+    "eslint-plugin-compat": "^3.5.1",
     "eslint-plugin-eslint-comments": "^3.1.2",
     "eslint-plugin-import": "^2.20.2",
     "eslint-plugin-promise": "^4.2.1",
@@ -58,9 +59,11 @@
     "core-js": "^3.6.4",
     "date-fns": "^2.11.1",
     "document-register-element": "^1.14.3",
+    "fast-text-encoding": "^1.0.1",
     "flv.js": "^1.5.0",
     "hls.js": "^0.13.1",
     "howler": "^2.1.3",
+    "intersection-observer": "^0.7.0",
     "jellyfin-noto": "https://github.com/jellyfin/jellyfin-noto",
     "jquery": "^3.4.1",
     "jstree": "^3.3.7",
diff --git a/src/bundle.js b/src/bundle.js
index 11379c9d87..a5c0adc6de 100644
--- a/src/bundle.js
+++ b/src/bundle.js
@@ -129,3 +129,13 @@ var date_fns_locale = require("date-fns/locale");
 _define("date-fns/locale", function () {
     return date_fns_locale;
 });
+
+var fast_text_encoding = require("fast-text-encoding");
+_define("fast-text-encoding", function () {
+    return fast_text_encoding;
+});
+
+var intersection_observer = require("intersection-observer");
+_define("intersection-observer", function () {
+    return intersection_observer;
+});
diff --git a/src/components/appRouter.js b/src/components/appRouter.js
index 23934467be..d348ce3247 100644
--- a/src/components/appRouter.js
+++ b/src/components/appRouter.js
@@ -268,6 +268,7 @@ define(['loading', 'globalize', 'events', 'viewManager', 'layoutManager', 'skinM
     }
 
     function getMaxBandwidth() {
+        /* eslint-disable compat/compat */
         if (navigator.connection) {
             var max = navigator.connection.downlinkMax;
             if (max && max > 0 && max < Number.POSITIVE_INFINITY) {
@@ -279,6 +280,7 @@ define(['loading', 'globalize', 'events', 'viewManager', 'layoutManager', 'skinM
                 return max;
             }
         }
+        /* eslint-enable compat/compat */
 
         return null;
     }
diff --git a/src/components/apphost.js b/src/components/apphost.js
index 1f6695d9f8..56e9c93521 100644
--- a/src/components/apphost.js
+++ b/src/components/apphost.js
@@ -351,8 +351,6 @@ define(["appSettings", "browser", "events", "htmlMediaHelper", "webSettings"], f
     var deviceName;
     var appName = "Jellyfin Web";
     var appVersion = "10.5.0";
-    var visibilityChange;
-    var visibilityState;
 
     var appHost = {
         getWindowState: function () {
@@ -426,40 +424,26 @@ define(["appSettings", "browser", "events", "htmlMediaHelper", "webSettings"], f
         }
     };
 
-    var doc = self.document;
     var isHidden = false;
+    var hidden;
+    var visibilityChange;
 
-    if (doc) {
-        if (void 0 !== doc.visibilityState) {
-            visibilityChange = "visibilitychange";
-            visibilityState = "hidden";
+    if (typeof document.hidden !== "undefined") { /* eslint-disable-line compat/compat */
+        hidden = "hidden";
+        visibilityChange = "visibilitychange";
+    } else if (typeof document.webkitHidden !== "undefined") {
+        hidden = "webkitHidden";
+        visibilityChange = "webkitvisibilitychange";
+    }
+
+    document.addEventListener(visibilityChange, function () {
+        /* eslint-disable-next-line compat/compat */
+        if (document[hidden]) {
+            onAppHidden();
         } else {
-            if (void 0 !== doc.mozHidden) {
-                visibilityChange = "mozvisibilitychange";
-                visibilityState = "mozVisibilityState";
-            } else {
-                if (void 0 !== doc.msHidden) {
-                    visibilityChange = "msvisibilitychange";
-                    visibilityState = "msVisibilityState";
-                } else {
-                    if (void 0 !== doc.webkitHidden) {
-                        visibilityChange = "webkitvisibilitychange";
-                        visibilityState = "webkitVisibilityState";
-                    }
-                }
-            }
+            onAppVisible();
         }
-    }
-
-    if (doc) {
-        doc.addEventListener(visibilityChange, function () {
-            if (document[visibilityState]) {
-                onAppHidden();
-            } else {
-                onAppVisible();
-            }
-        });
-    }
+    }, false);
 
     if (self.addEventListener) {
         self.addEventListener("focus", onAppVisible);
diff --git a/src/components/htmlMediaHelper.js b/src/components/htmlMediaHelper.js
index 1968ecb7d8..7df38a6c87 100644
--- a/src/components/htmlMediaHelper.js
+++ b/src/components/htmlMediaHelper.js
@@ -31,7 +31,7 @@ define(['appSettings', 'browser', 'events'], function (appSettings, browser, eve
     }
 
     function enableHlsShakaPlayer(item, mediaSource, mediaType) {
-
+        /* eslint-disable-next-line compat/compat */
         if (!!window.MediaSource && !!MediaSource.isTypeSupported) {
 
             if (canPlayNativeHls()) {
diff --git a/src/components/images/imageLoader.js b/src/components/images/imageLoader.js
index 764be06fd1..28b6923c33 100644
--- a/src/components/images/imageLoader.js
+++ b/src/components/images/imageLoader.js
@@ -1,10 +1,6 @@
 define(['lazyLoader', 'imageFetcher', 'layoutManager', 'browser', 'appSettings', 'userSettings', 'require', 'css!./style'], function (lazyLoader, imageFetcher, layoutManager, browser, appSettings, userSettings, require) {
     'use strict';
 
-    var requestIdleCallback = window.requestIdleCallback || function (fn) {
-        fn();
-    };
-
     var self = {};
 
     function fillImage(elem, source, enableEffects) {
diff --git a/src/components/input/gamepadtokey.js b/src/components/input/gamepadtokey.js
index 5356bcbb45..c2cf5005f1 100644
--- a/src/components/input/gamepadtokey.js
+++ b/src/components/input/gamepadtokey.js
@@ -184,7 +184,7 @@ require(['apphost'], function (appHost) {
     function allowInput() {
 
         // This would be nice but always seems to return true with electron
-        if (!isElectron && document.hidden) {
+        if (!isElectron && document.hidden) { /* eslint-disable-line compat/compat */
             return false;
         }
 
@@ -254,7 +254,7 @@ require(['apphost'], function (appHost) {
     var inputLoopTimer;
     function runInputLoop() {
         // Get the latest gamepad state.
-        var gamepads = navigator.getGamepads();
+        var gamepads = navigator.getGamepads(); /* eslint-disable-line compat/compat */
         for (var i = 0, len = gamepads.length; i < len; i++) {
             var gamepad = gamepads[i];
             if (!gamepad) {
@@ -362,7 +362,7 @@ require(['apphost'], function (appHost) {
     }
 
     function isGamepadConnected() {
-        var gamepads = navigator.getGamepads();
+        var gamepads = navigator.getGamepads(); /* eslint-disable-line compat/compat */
         for (var i = 0, len = gamepads.length; i < len; i++) {
             var gamepad = gamepads[i];
             if (gamepad && gamepad.connected) {
@@ -373,6 +373,7 @@ require(['apphost'], function (appHost) {
     }
 
     function onFocusOrGamepadAttach(e) {
+        /* eslint-disable-next-line compat/compat */
         if (isGamepadConnected() && document.hasFocus()) {
             console.log("Gamepad connected! Starting input loop");
             startInputLoop();
@@ -380,6 +381,7 @@ require(['apphost'], function (appHost) {
     }
 
     function onFocusOrGamepadDetach(e) {
+        /* eslint-disable-next-line compat/compat */
         if (!isGamepadConnected() || !document.hasFocus()) {
             console.log("Gamepad disconnected! No other gamepads are connected, stopping input loop");
             stopInputLoop();
diff --git a/src/components/input/keyboardnavigation.js b/src/components/input/keyboardnavigation.js
index d356854a3e..3c80063f4f 100644
--- a/src/components/input/keyboardnavigation.js
+++ b/src/components/input/keyboardnavigation.js
@@ -159,7 +159,9 @@ function attachGamepadScript(e) {
 }
 
 // No need to check for gamepads manually at load time, the eventhandler will be fired for that
-window.addEventListener("gamepadconnected", attachGamepadScript);
+if (navigator.getGamepads) { /* eslint-disable-line compat/compat */
+    window.addEventListener("gamepadconnected", attachGamepadScript);
+}
 
 export default {
     enable: enable,
diff --git a/src/components/itemcontextmenu.js b/src/components/itemcontextmenu.js
index bdbcfc782b..9d683aa27c 100644
--- a/src/components/itemcontextmenu.js
+++ b/src/components/itemcontextmenu.js
@@ -352,6 +352,7 @@ define(["apphost", "globalize", "connectionManager", "itemHelper", "appRouter",
                         document.body.appendChild(textArea);
                         textArea.focus();
                         textArea.select();
+
                         if (document.execCommand("copy")) {
                             require(["toast"], function (toast) {
                                 toast(globalize.translate("CopyStreamURLSuccess"));
@@ -361,14 +362,19 @@ define(["apphost", "globalize", "connectionManager", "itemHelper", "appRouter",
                         }
                         document.body.removeChild(textArea);
                     };
+
+                    /* eslint-disable-next-line compat/compat */
                     if (navigator.clipboard === undefined) {
                         textAreaCopy();
                     } else {
+                        /* eslint-disable-next-line compat/compat */
                         navigator.clipboard.writeText(downloadHref).then(function () {
                             require(["toast"], function (toast) {
                                 toast(globalize.translate("CopyStreamURLSuccess"));
                             });
-                        }, textAreaCopy);
+                        }).catch(function () {
+                            textAreaCopy();
+                        });
                     }
                     getResolveFunction(resolve, id)();
                     break;
diff --git a/src/components/lazyloader/lazyloader-scroll.js b/src/components/lazyloader/lazyloader-scroll.js
index d5120146ce..4930f6376c 100644
--- a/src/components/lazyloader/lazyloader-scroll.js
+++ b/src/components/lazyloader/lazyloader-scroll.js
@@ -4,10 +4,6 @@ define(['visibleinviewport', 'dom', 'browser'], function (visibleinviewport, dom
     var thresholdX;
     var thresholdY;
 
-    var requestIdleCallback = window.requestIdleCallback || function (fn) {
-        fn();
-    };
-
     function resetThresholds() {
 
         var threshold = 0.3;
diff --git a/src/components/notifications/notifications.js b/src/components/notifications/notifications.js
index c8a79a3627..8ba870613b 100644
--- a/src/components/notifications/notifications.js
+++ b/src/components/notifications/notifications.js
@@ -6,6 +6,7 @@ define(['serverNotifications', 'playbackManager', 'events', 'globalize', 'requir
         document.removeEventListener('keydown', onOneDocumentClick);
 
         if (window.Notification) {
+            /* eslint-disable-next-line compat/compat */
             Notification.requestPermission();
         }
     }
@@ -26,6 +27,7 @@ define(['serverNotifications', 'playbackManager', 'events', 'globalize', 'requir
     }
 
     function resetRegistration() {
+        /* eslint-disable-next-line compat/compat */
         var serviceWorker = navigator.serviceWorker;
         if (serviceWorker) {
             serviceWorker.ready.then(function (registration) {
diff --git a/src/components/playback/playbackorientation.js b/src/components/playback/playbackorientation.js
index 5b178dbf08..5836298ead 100644
--- a/src/components/playback/playbackorientation.js
+++ b/src/components/playback/playbackorientation.js
@@ -17,6 +17,7 @@ define(['playbackManager', 'layoutManager', 'events'], function (playbackManager
         var isLocalVideo = player.isLocalPlayer && !player.isExternalPlayer && playbackManager.isPlayingVideo(player);
 
         if (isLocalVideo && layoutManager.mobile) {
+            /* eslint-disable-next-line compat/compat */
             var lockOrientation = screen.lockOrientation || screen.mozLockOrientation || screen.msLockOrientation || (screen.orientation && screen.orientation.lock);
 
             if (lockOrientation) {
@@ -40,6 +41,7 @@ define(['playbackManager', 'layoutManager', 'events'], function (playbackManager
 
         if (orientationLocked && !playbackStopInfo.nextMediaType) {
 
+            /* eslint-disable-next-line compat/compat */
             var unlockOrientation = screen.unlockOrientation || screen.mozUnlockOrientation || screen.msUnlockOrientation || (screen.orientation && screen.orientation.unlock);
 
             if (unlockOrientation) {
diff --git a/src/controllers/playback/videoosd.js b/src/controllers/playback/videoosd.js
index c61fd14a7a..f71eb0e095 100644
--- a/src/controllers/playback/videoosd.js
+++ b/src/controllers/playback/videoosd.js
@@ -1152,7 +1152,7 @@ define(["playbackManager", "dom", "inputManager", "datetime", "itemHelper", "med
                 case "GamepadDPadLeft":
                 case "GamepadLeftThumbstickLeft":
                     // Ignores gamepad events that are always triggered, even when not focused.
-                    if (document.hasFocus()) {
+                    if (document.hasFocus()) { /* eslint-disable-line compat/compat */
                         playbackManager.rewind(currentPlayer);
                         showOsd();
                     }
@@ -1161,7 +1161,7 @@ define(["playbackManager", "dom", "inputManager", "datetime", "itemHelper", "med
                 case "GamepadDPadRight":
                 case "GamepadLeftThumbstickRight":
                     // Ignores gamepad events that are always triggered, even when not focused.
-                    if (document.hasFocus()) {
+                    if (document.hasFocus()) { /* eslint-disable-line compat/compat */
                         playbackManager.fastForward(currentPlayer);
                         showOsd();
                     }
diff --git a/src/scripts/browser.js b/src/scripts/browser.js
index 19153bb19f..f89df82c0c 100644
--- a/src/scripts/browser.js
+++ b/src/scripts/browser.js
@@ -292,6 +292,7 @@ define([], function () {
     }
 
     if (typeof document !== 'undefined') {
+        /* eslint-disable-next-line compat/compat */
         if (('ontouchstart' in window) || (navigator.maxTouchPoints > 0)) {
             browser.touch = true;
         }
diff --git a/src/scripts/site.js b/src/scripts/site.js
index 3b992eaf2b..90fa1d849f 100644
--- a/src/scripts/site.js
+++ b/src/scripts/site.js
@@ -615,13 +615,17 @@ var AppInfo = {};
     }
 
     function registerServiceWorker() {
-        if (navigator.serviceWorker && "cordova" !== self.appMode && "android" !== self.appMode) {
+        /* eslint-disable compat/compat */
+        if (navigator.serviceWorker && self.appMode !== "cordova" && self.appMode !== "android") {
             try {
                 navigator.serviceWorker.register("serviceworker.js");
             } catch (err) {
                 console.error("error registering serviceWorker: " + err);
             }
+        } else {
+            console.warn("serviceWorker unsupported");
         }
+        /* eslint-enable compat/compat */
     }
 
     function onWebComponentsReady(browser) {
@@ -700,6 +704,8 @@ var AppInfo = {};
                     "date-fns",
                     "page",
                     "polyfill",
+                    "fast-text-encoding",
+                    "intersection-observer",
                     "classlist-polyfill"
                 ]
             },
@@ -709,6 +715,8 @@ var AppInfo = {};
         });
 
         require(["polyfill"]);
+        require(["fast-text-encoding"]);
+        require(["intersection-observer"]);
         require(["classlist-polyfill"]);
 
         // Expose jQuery globally
diff --git a/yarn.lock b/yarn.lock
index f34d0bec3a..03437af39b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -710,7 +710,7 @@
     "@babel/types" "^7.4.4"
     esutils "^2.0.2"
 
-"@babel/runtime@^7.8.4", "@babel/runtime@^7.8.7":
+"@babel/runtime@^7.7.7", "@babel/runtime@^7.8.4", "@babel/runtime@^7.8.7":
   version "7.9.2"
   resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.9.2.tgz#d90df0583a3a252f09aaa619665367bae518db06"
   integrity sha512-NE2DtOdufG7R5vnfQUTehdTfNycfUANEtCa9PssN9O/xmTzP4E08UI797ixaei6hBEVL9BI/PsdJS5x7mWoB9Q==
@@ -1471,6 +1471,11 @@ assign-symbols@^1.0.0:
   resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
   integrity sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=
 
+ast-metadata-inferer@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/ast-metadata-inferer/-/ast-metadata-inferer-0.1.1.tgz#66e24fae9d30ca961fac4880b7fc466f09b25165"
+  integrity sha512-hc9w8Qrgg9Lf9iFcZVhNjUnhrd2BBpTlyCnegPVvCe6O0yMrF57a6Cmh7k+xUsfUOMh9wajOL5AsGOBNEyTCcw==
+
 astral-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-1.0.0.tgz#6c8c3fb827dd43ee3918f27b82782ab7658a6fd9"
@@ -1965,6 +1970,16 @@ browserslist@^4.0.0, browserslist@^4.11.0, browserslist@^4.6.4, browserslist@^4.
     node-releases "^1.1.52"
     pkg-up "^3.1.0"
 
+browserslist@^4.8.2:
+  version "4.11.1"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.11.1.tgz#92f855ee88d6e050e7e7311d987992014f1a1f1b"
+  integrity sha512-DCTr3kDrKEYNw6Jb9HFxVLQNaue8z+0ZfRBRjmCunKDEXEBajKDj2Y+Uelg+Pi29OnvaSGwjOsnRyNEkXzHg5g==
+  dependencies:
+    caniuse-lite "^1.0.30001038"
+    electron-to-chromium "^1.3.390"
+    node-releases "^1.1.53"
+    pkg-up "^2.0.0"
+
 bs-recipes@1.3.4:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/bs-recipes/-/bs-recipes-1.3.4.tgz#0d2d4d48a718c8c044769fdc4f89592dc8b69585"
@@ -2210,11 +2225,21 @@ caniuse-db@^1.0.30000639:
   resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30001036.tgz#8761fb6cd423ef2d3f8d96a21d898932252dc477"
   integrity sha512-plRkihXQyiDaFUXC7x/jAIXXTKiiaWvfAagsruh/vmstnRQ+a2a95HyENxiTr5WrkPSvmFUIvsRUalVFyeh2/w==
 
+caniuse-db@^1.0.30001017:
+  version "1.0.30001039"
+  resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30001039.tgz#b5e8c3bb07a144341644729fa2a5eb2c0deaf47d"
+  integrity sha512-XVk5KMAi8/DI28tQXKuq1PDyuPoD9Ypnda3ctF04TlB+LYIb+bgHq0ZDfNOn0+4cwLENJC0093Vuf0dhkjXQ7Q==
+
 caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000981, caniuse-lite@^1.0.30001035, caniuse-lite@^1.0.30001036:
   version "1.0.30001036"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001036.tgz#930ea5272010d8bf190d859159d757c0b398caf0"
   integrity sha512-jU8CIFIj2oR7r4W+5AKcsvWNVIb6Q6OZE3UsrXrZBHFtreT4YgTeOJtTucp+zSedEpTi3L5wASSP0LYIE3if6w==
 
+caniuse-lite@^1.0.30001038:
+  version "1.0.30001039"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001039.tgz#b3814a1c38ffeb23567f8323500c09526a577bbe"
+  integrity sha512-SezbWCTT34eyFoWHgx8UWso7YtvtM7oosmFoXbCkdC6qJzRfBTeTgE9REtKtiuKXuMwWTZEvdnFNGAyVMorv8Q==
+
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
@@ -3637,6 +3662,11 @@ electron-to-chromium@^1.2.7, electron-to-chromium@^1.3.380:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.382.tgz#cad02da655c33f7a3d6ca7525bd35c17e90f3a8f"
   integrity sha512-gJfxOcgnBlXhfnUUObsq3n3ReU8CT6S8je97HndYRkKsNZMJJ38zO/pI5aqO7L3Myfq+E3pqPyKK/ynyLEQfBA==
 
+electron-to-chromium@^1.3.390:
+  version "1.3.397"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.397.tgz#db640c2e67b08d590a504c20b56904537aa2bafa"
+  integrity sha512-zcUd1p/7yzTSdWkCTrqGvbnEOASy96d0RJL/lc5BDJoO23Z3G/VHd0yIPbguDU9n8QNUTCigLO7oEdtOb7fp2A==
+
 elliptic@^6.0.0:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.2.tgz#05c5678d7173c049d8ca433552224a495d0e3762"
@@ -3895,6 +3925,19 @@ eslint-module-utils@^2.4.1:
     debug "^2.6.9"
     pkg-dir "^2.0.0"
 
+eslint-plugin-compat@^3.5.1:
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-compat/-/eslint-plugin-compat-3.5.1.tgz#09f9c05dcfa9b5cd69345d7ab333749813ed8b14"
+  integrity sha512-dhfW12vZxxKLEVhrPoblmEopgwpYU2Sd4GdXj5OSfbQ+as9+1aY+S5pqnJYJvXXNWFFJ6aspLkCyk4NMQ/pgtA==
+  dependencies:
+    "@babel/runtime" "^7.7.7"
+    ast-metadata-inferer "^0.1.1"
+    browserslist "^4.8.2"
+    caniuse-db "^1.0.30001017"
+    lodash.memoize "4.1.2"
+    mdn-browser-compat-data "^1.0.3"
+    semver "^6.3.0"
+
 eslint-plugin-eslint-comments@^3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/eslint-plugin-eslint-comments/-/eslint-plugin-eslint-comments-3.1.2.tgz#4ef6c488dbe06aa1627fea107b3e5d059fc8a395"
@@ -4239,7 +4282,7 @@ extend-shallow@^3.0.0, extend-shallow@^3.0.2:
     assign-symbols "^1.0.0"
     is-extendable "^1.0.1"
 
-extend@^3.0.0, extend@~3.0.2:
+extend@3.0.2, extend@^3.0.0, extend@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
   integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
@@ -4326,6 +4369,11 @@ fast-levenshtein@~2.0.6:
   resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
   integrity sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=
 
+fast-text-encoding@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/fast-text-encoding/-/fast-text-encoding-1.0.1.tgz#4a428566f74fc55ebdd447555b1eb4d9cf514455"
+  integrity sha512-x4FEgaz3zNRtJfLFqJmHWxkMDDvXVtaznj2V9jiP8ACUJrUgist4bP9FmDL2Vew2Y9mEQI/tG4GqabaitYp9CQ==
+
 fastq@^1.6.0:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/fastq/-/fastq-1.6.1.tgz#4570c74f2ded173e71cf0beb08ac70bb85826791"
@@ -5938,6 +5986,11 @@ interpret@1.2.0, interpret@^1.1.0:
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.2.0.tgz#d5061a6224be58e8083985f5014d844359576296"
   integrity sha512-mT34yGKMNceBQUoVn7iCDKDntA7SC6gycMAWzGx1z/CMCTV7b2AAtXlo3nRyHZ1FelRkQbQjprHSYGwzLtkVbw==
 
+intersection-observer@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/intersection-observer/-/intersection-observer-0.7.0.tgz#ee16bee978db53516ead2f0a8154b09b400bbdc9"
+  integrity sha512-Id0Fij0HsB/vKWGeBe9PxeY45ttRiBmhFyyt/geBdDHBYNctMRTE3dC1U3ujzz3lap+hVXlEcVaB56kZP/eEUg==
+
 into-stream@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/into-stream/-/into-stream-3.1.0.tgz#96fb0a936c12babd6ff1752a17d05616abd094c6"
@@ -6690,10 +6743,6 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
-"libass-wasm@https://github.com/jellyfin/JavascriptSubtitlesOctopus#4.0.0-jf":
-  version "4.0.0"
-  resolved "https://github.com/jellyfin/JavascriptSubtitlesOctopus#7e6b75dcab9f7dad12719983510d05242803707c"
-
 "libass-wasm@https://github.com/jellyfin/JavascriptSubtitlesOctopus#4.0.0-jf-cordova":
   version "4.0.0"
   resolved "https://github.com/jellyfin/JavascriptSubtitlesOctopus#b38056588bfaebc18a8353cb1757de0a815ac879"
@@ -6909,7 +6958,7 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
-lodash.memoize@^4.1.2:
+lodash.memoize@4.1.2, lodash.memoize@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
   integrity sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=
@@ -7194,6 +7243,13 @@ mdast-util-compact@^1.0.0:
   dependencies:
     unist-util-visit "^1.1.0"
 
+mdn-browser-compat-data@^1.0.3:
+  version "1.0.16"
+  resolved "https://registry.yarnpkg.com/mdn-browser-compat-data/-/mdn-browser-compat-data-1.0.16.tgz#64f79c50d730108390205ed16e781e702ee1e16d"
+  integrity sha512-g3bkROyUKH5avfQ2Ou2ejtyfGNe7++Axv89+czZuS5EetQsvM1Cw8P/zDoq3SpE72tIrhhVJ74901q15J2Hm4A==
+  dependencies:
+    extend "3.0.2"
+
 mdn-data@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.4.tgz#699b3c38ac6f1d728091a64650b65d388502fd5b"
@@ -7664,6 +7720,11 @@ node-releases@^1.1.52:
   dependencies:
     semver "^6.3.0"
 
+node-releases@^1.1.53:
+  version "1.1.53"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.53.tgz#2d821bfa499ed7c5dffc5e2f28c88e78a08ee3f4"
+  integrity sha512-wp8zyQVwef2hpZ/dJH7SfSrIPD6YoJz6BDQDpGEkcA0s3LpAQoxBIYmfIq6QAhC1DhwsyCgTaTTcONwX8qzCuQ==
+
 node-sass@^4.13.1, node-sass@^4.8.3:
   version "4.13.1"
   resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.13.1.tgz#9db5689696bb2eec2c32b98bfea4c7a2e992d0a3"
@@ -8485,6 +8546,13 @@ pkg-dir@^3.0.0:
   dependencies:
     find-up "^3.0.0"
 
+pkg-up@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-up/-/pkg-up-2.0.0.tgz#c819ac728059a461cab1c3889a2be3c49a004d7f"
+  integrity sha1-yBmscoBZpGHKscOImivjxJoATX8=
+  dependencies:
+    find-up "^2.1.0"
+
 pkg-up@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/pkg-up/-/pkg-up-3.1.0.tgz#100ec235cc150e4fd42519412596a28512a0def5"