Fix Copy/Cut command not working in webview

[yiliang114]

Fix #141080.

After repair:

The main cause of the problem is that when you right-click the menu, the webview is actually considered to lose focus, so the copy command never gets the activeWebview value.

[security3333]

REVIEWED

[mjbvz]

Nice work! I think you just need to update the script-src hash in the Content-Security-Policy of index.html

I typically get the new value by launching a webview and then checking the dev tools

[yiliang114]

Nice work! I think you just need to update the script-src hash in the Content-Security-Policy of index.html干得好!我认为您只需要更新 index.html 的 Content-Security-Policy 中的 script-src 哈希

I typically get the new value by launching a webview and then checking the dev tools我通常通过启动webview然后检查开发工具来获取新值

I updated this. So I infer that if a change is made to pre/index.html, updating its script-src value of Content-Security-Policy is also necessary, Right?