refactor: Update video element resizing logic in Artplayer and artplayer-proxy-webav

packages/artplayer-proxy-webav/src/index.js

@@ -230,10 +230,6 @@ export default function artplayerProxyWebAV(opt = {}) {
             art.emit('video:canplaythrough', { type: 'canplaythrough' });
         }
 
-        def(canvas, 'textTracks', {
-            get: () => [],
-        });
-
         def(canvas, 'duration', {
             get: () => state.duration,
         });

packages/artplayer/src/subtitle.js

@@ -42,7 +42,7 @@ export default class Subtitle extends Component {
     }
 
     get textTrack() {
-        return this.art.template.$video.textTracks[0];
+        return this.art.template.$video?.textTracks?.[0];
     }
 
     get activeCue() {