Currently only the main world has WindowShell. We should implement WindowShell for all IsolatedWorlds.
(In reply to comment #0) > Currently only the main world has WindowShell. We should implement WindowShell for all IsolatedWorlds. This is not correct. All worlds can have many window shells. See https://bugs.webkit.org/show_bug.cgi?id=93646. I've got a new patch coming out shortly to solve this.
Closing some V8-related work items.