diff --git a/package-lock.json b/package-lock.json
index 964d7ed7c0..5e7d33af06 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,6 +25,7 @@
         "dompurify": "3.0.1",
         "epubjs": "0.4.2",
         "escape-html": "1.0.3",
+        "event-target-polyfill": "0.0.3",
         "fast-text-encoding": "1.0.6",
         "flv.js": "1.6.2",
         "headroom.js": "0.12.0",
diff --git a/package.json b/package.json
index 4a6817c17c..a795264e58 100644
--- a/package.json
+++ b/package.json
@@ -84,6 +84,7 @@
     "dompurify": "3.0.1",
     "epubjs": "0.4.2",
     "escape-html": "1.0.3",
+    "event-target-polyfill": "0.0.3",
     "fast-text-encoding": "1.0.6",
     "flv.js": "1.6.2",
     "headroom.js": "0.12.0",
diff --git a/src/plugins/htmlVideoPlayer/plugin.js b/src/plugins/htmlVideoPlayer/plugin.js
index a2e5535df6..a9457783f4 100644
--- a/src/plugins/htmlVideoPlayer/plugin.js
+++ b/src/plugins/htmlVideoPlayer/plugin.js
@@ -1270,10 +1270,11 @@ function tryRemoveElement(elem) {
                 fonts: avaliableFonts,
                 fallbackFont: 'liberation sans',
                 availableFonts: {'liberation sans': `${appRouter.baseUrl()}/libraries/default.woff2`},
+                // Disabled eslint compat, but is safe as corejs3 polyfills URL
                 // eslint-disable-next-line compat/compat
-                workerUrl: `${appRouter.baseUrl()}/${new URL('jassub/dist/jassub-worker.js', import.meta.url)}`,
+                workerUrl: `${appRouter.baseUrl()}${new URL('jassub/dist/jassub-worker.js', import.meta.url).pathname}`,
                 // eslint-disable-next-line compat/compat
-                legacyWorkerUrl: `${appRouter.baseUrl()}/${new URL('jassub/dist/jassub-worker-legacy.js', import.meta.url)}`,
+                legacyWorkerUrl: `${appRouter.baseUrl()}${new URL('jassub/dist/jassub-worker-legacy.js', import.meta.url).pathname}`,
                 timeOffset: (this._currentPlayOptions.transcodingOffsetTicks || 0) / 10000000,
                 // new jassub options; override all, even defaults
                 blendMode: 'js',
@@ -1290,37 +1291,39 @@ function tryRemoveElement(elem) {
                 prescaleHeightLimit: 1080,
                 maxRenderHeight: 2160
             };
-            import('jassub').then(({ default: JASSUB }) => {
-                Promise.all([
-                    apiClient.getNamedConfiguration('encoding'),
-                    // Worker in Tizen 5 doesn't resolve relative path with async request
-                    resolveUrl(options.workerUrl),
-                    resolveUrl(options.legacyWorkerUrl)
-                ]).then(([config, workerUrl, legacyWorkerUrl]) => {
-                    options.workerUrl = workerUrl;
-                    options.legacyWorkerUrl = legacyWorkerUrl;
+            import('event-target-polyfill').then(() => {
+                    import('jassub').then(({ default: JASSUB }) => {
+                    Promise.all([
+                        apiClient.getNamedConfiguration('encoding'),
+                        // Worker in Tizen 5 doesn't resolve relative path with async request
+                        resolveUrl(options.workerUrl),
+                        resolveUrl(options.legacyWorkerUrl)
+                    ]).then(([config, workerUrl, legacyWorkerUrl]) => {
+                        options.workerUrl = workerUrl;
+                        options.legacyWorkerUrl = legacyWorkerUrl;
 
-                    const cleanup = () => {
-                        this.#currentJASSUB.destroy();
-                        this.#currentJASSUB = null;
-                        onErrorInternal(this, 'mediadecodeerror');
-                    };
+                        const cleanup = () => {
+                            this.#currentJASSUB.destroy();
+                            this.#currentJASSUB = null;
+                            onErrorInternal(this, 'mediadecodeerror');
+                        };
 
-                    if (config.EnableFallbackFont) {
-                        apiClient.getJSON(fallbackFontList).then((fontFiles = []) => {
-                            fontFiles.forEach(font => {
-                                const fontUrl = apiClient.getUrl(`/FallbackFont/Fonts/${font.Name}`, {
-                                    api_key: apiClient.accessToken()
+                        if (config.EnableFallbackFont) {
+                            apiClient.getJSON(fallbackFontList).then((fontFiles = []) => {
+                                fontFiles.forEach(font => {
+                                    const fontUrl = apiClient.getUrl(`/FallbackFont/Fonts/${font.Name}`, {
+                                        api_key: apiClient.accessToken()
+                                    });
+                                    avaliableFonts.push(fontUrl);
                                 });
-                                avaliableFonts.push(fontUrl);
+                                this.#currentJASSUB = new JASSUB(options);
+                                this.#currentJASSUB.addEventListener('error', cleanup, { once: true });
                             });
+                        } else {
                             this.#currentJASSUB = new JASSUB(options);
                             this.#currentJASSUB.addEventListener('error', cleanup, { once: true });
-                        });
-                    } else {
-                        this.#currentJASSUB = new JASSUB(options);
-                        this.#currentJASSUB.addEventListener('error', cleanup, { once: true });
-                    }
+                        }
+                    });
                 });
             });
         }
diff --git a/webpack.common.js b/webpack.common.js
index a66ddfe033..87f899040c 100644
--- a/webpack.common.js
+++ b/webpack.common.js
@@ -8,10 +8,13 @@ const { DefinePlugin } = require('webpack');
 const Assets = [
     'native-promise-only/npo.js',
     'libarchive.js/dist/worker-bundle.js',
+    'pdfjs-dist/build/pdf.worker.js'
+];
+
+const JassubWasm = [
     'jassub/dist/jassub-worker.wasm',
     'jassub/dist/jassub-worker-legacy.mem',
-    'jassub/dist/default.woff2',
-    'pdfjs-dist/build/pdf.worker.js'
+    'jassub/dist/default.woff2'
 ];
 
 const LibarchiveWasm = [
@@ -80,6 +83,14 @@ const config = {
                     to: path.resolve(__dirname, './dist/libraries/wasm-gen')
                 };
             })
+        }),
+        new CopyPlugin({
+            patterns: JassubWasm.map(asset => {
+                return {
+                    from: path.resolve(__dirname, `./node_modules/${asset}`),
+                    to: path.resolve(__dirname, './dist')
+                };
+            })
         })
     ],
     output: {
@@ -144,6 +155,7 @@ const config = {
             {
                 test: /\.(js|jsx)$/,
                 include: [
+                    path.resolve(__dirname, 'node_modules/event-target-polyfill'),
                     path.resolve(__dirname, 'node_modules/rvfc-polyfill'),
                     path.resolve(__dirname, 'node_modules/@jellyfin/sdk'),
                     path.resolve(__dirname, 'node_modules/@remix-run/router'),