as you can I lost all css, and also the favicon ! no real biggie as pressing f5 cured the css issue and returned the favicon
note: this a browser tab that has not been touched for over 24 hours, would inactivity cause this ?
I’ve seen this issue before but really don’t remember which browser/site/etc as it is various combinations. ( I do remember Slashdot on a fairly locked down Firefox recently though.) I just reload and move on. Debian 13 but I doubt that makes much of a difference.
I haven’t been able to reproduce this locally. Still trying. But, if you can get some errors from the web developer console or some indication of what’s going wrong when it goes blank.