Since Firefox 79 beta my college website doesn't work (embedded content)
Hi, Since I've updated to Firefox 79 beta I can't access my university campus website. It worked until Firefox 78 and it works with latest Chrome and Edge, but not in Firefox 79 beta and nightly.
The error is: "Website will not allow Firefox to display the page if another site has embedded it": https://support.mozilla.org/ca/kb/xframe-neterror-page?as=u&utm_source=inproduct
Is it a bug or a "feature"? UOC is one of the biggest online university of Spain, it will be a "disaster" if students can't access it with Firefox.
I can explain you how to reproduce it because it's the private area and you need student credentials to enter, but the login website is: http://cv.uoc.edu
In the console I can see some errors like this: Cookie “example” will be soon treated as cross-site cookie against “http://cv.uoc.edu/rb/inici/plin/fonts/icons.woff?cc152853f8bb07259fb3eb89b6fbfee7” because the scheme does not match.
Wszystkie odpowiedzi (4)
Does cv.uoc.edu work if you use the latest general availability version i.e. Firefox 78.0.2 instead of Firefox 79 beta?
A possible workaround you can try is to use the right-click context menu on the page:
- This Frame -> "Show Only This Frame" or "Open Frame in New Tab"
Note that this happens if this web page wants to open an external page in an iframe and that website prohibits this via a X-FRAME-OPTIONS header in the HTTP response headers.
You can check the HTTP response headers via the Web Console for the X-FRAME-OPTIONS header. If this worked before then the website that is embedded may have recently added this header for security reasons.
- "3-bar" menu button or Tools -> Web Developer