Current page flashing while navigating to page with relative path and will-navigate event handler

[AleshaOleg]

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 an issue that matches the one I want to file, without success.

Issue Details

• Electron Version:
  • v6.0.7
• Operating System:
  • macOS 10.13.6
• Last Known Working Electron version:
  • v6.0.3

Expected Behavior

Navigating to a page with a relative path and will-navigate event handler without any flashed.

Actual Behavior

Current page flashing while navigating to another page with relative path in href when will-navigate event handler exists.

To Reproduce

I made repository with reproducing - https://github.com/AleshaOleg/electron-flashing-page-reproduce

Please run it, and when you'll see GitHub home page, please click any link with relative path. For example, it's a green "Sign up" button.

Screenshots

https://www.dropbox.com/s/uhrmxzvzswjmqz2/Reproducing.mov?dl=0

Additional Information

Probably related to those fixes in 6.0.4:

• Fixed web page displayed with offset when using native tab on macOS. #19888
• Fixed white flash after restoring an app from the background. #19900

[MarshallOfSound]

This issue is known and comes from upstream. Basically the renderer restarts on navigations and this causes the compositor to flash white. For instance I can see the white flash on 6.0.3 (in fact every version of Electron).

See #6104

You can mitigate this for same-site navigations by using app.allowRendererProcessReuse = true but you should read through what that property does before using it.

[fayeinmay]

Hey, sorry for asking here, but I crawled to many issues and couldn't find an answer. Is there any way to redirect between pages without having a "flash", except using allowRendererProcessReuse?