Web Library not working

TiborSteinecke · 2025-10-16T18:33:23+00:00

Hey my web library is not working on my Dell laptop (Windows 11).
I just get a dark-grey screen with the Zotero logo in the middle.
https://s3.amazonaws.com/zotero.org/images/forums/u17843629/simnxdavyr18nwzdlcpo.png

tnajdek · 2025-10-16T18:45:58+00:00

It usually means that the web library is loading, but some data is taking longer to download. Try reloading the page, and if that doesn’t help, see if any errors are printed to the browser console.

TiborSteinecke · 2025-10-17T17:11:44+00:00

I looked at the browser console and got a error stating: Access to fetch at "my collection" from origin 'https://www.zotero.org' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok status.

tnajdek · 2025-10-17T17:28:12+00:00

Could you post a screenshot with the console open?

From the sound of it, it’s most likely caused by a browser plugin or some security software on your computer. Does it work if you use a different browser?