Duck Player: Change Playlist URL behavior (#1787)

Author: mgurgel

injected/src/features/duckplayer/util.js

@@ -238,13 +238,6 @@ export class VideoParams {
         const vParam = url.searchParams.get('v');
         const tParam = url.searchParams.get('t');
 
-        // don't continue if 'list' is present, but 'index' is not.
-        //   valid: '/watch?v=321&list=123&index=1234'
-        // invalid: '/watch?v=321&list=123' <- index absent
-        if (url.searchParams.has('list') && !url.searchParams.has('index')) {
-            return null;
-        }
-
         let time = null;
 
         // ensure youtube video id is good