Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

Electron Version

39.2.7

What operating system(s) are you using?

Windows

Operating System Version

Windows 11 25H2

What arch are you using?

x64

Last Known Working Electron version

No response

Does the issue also appear in Chromium / Google Chrome?

I don't know how to test

Expected Behavior

Intuitively, setBounds is related to positions and has nothing to do with the favicon. So page-favicon-updated event should not be emitted when calling setBounds with a new bounds on a WebContentsView.

Actual Behavior

Construct a WebContentsView, listen its page-favicon-updated event, add it to the main window, and loadURL for like https://electronjs.org. Then call setBounds with a new bounds on the WebContentsView, page-favicon-updated will be triggered.

This doesn't occur on all websites, but many websites have this problem, including https://github.com.

Usually this won't lead to noticeable problems. But if the user wants to auto resize the WebContentsView when the main window resizes, setBounds will be frequently called and a series of page-favicon-updated event will be emitted, even if the favicon urls array is not changed.

Testcase Gist URL

https://gist.github.com/z0gSh1u/72fe6f155e1f145385461853d7ef2782

Additional Information

Can be reproduced on macOS too.