refactor: Update video element in Artplayer to support custom canvas or video

packages/artplayer/src/index.js

@@ -156,7 +156,7 @@ export default class Artplayer extends Emitter {
             autoPlayback: false,
             autoOrientation: false,
             airplay: false,
-            proxy: null,
+            proxy: undefined,
             layers: [],
             contextmenu: [],
             controls: [],

packages/artplayer/src/scheme/index.js

@@ -68,7 +68,7 @@ export default {
     autoPlayback: b,
     autoOrientation: b,
     airplay: b,
-    proxy: f,
+    proxy: `?${f}`,
     plugins: [f],
     layers: [ComponentOption],
     contextmenu: [ComponentOption],