Fix copy when focused on the browser's address bar.

[lingceng]

No description provided.

[wdhongtw]

Hi @lingceng , thanks for the PR.

The ability to support copy when focusing on address bar looks appealing,
but the usage on deprecated interface document.execCommand discourage me from accepting this.
(Actually the first working version of this extension does use document.execCommand, in a slightly different way.)

Also, would you like to elaborate a little abount the scenario where you are copying link without page focus?
Actually I didn't notice this limitation before this PR , so I'm interested about how you use this extension normally. :D

[wdhongtw]

Side Notes:

• Features gated by user activation - Security on the web | MDN
• Secure contexts - Security on the web | MDN

[lingceng]

Thank you for your reply.

The specific scenario is that sometimes I accidentally click on the address bar, and clicking the copy button doesn't work.

I understand the security scenario you're referring to, and recently I've noticed that using the execCommand approach throws errors on some Lark documents where modifications aren't allowed, so it's not a perfect solution either.

Perhaps we could provide a prompt when the current text is not focused and cannot be copied?