Whenever I navigate to a github page (any page under the github.com domain), the css styles fail to load. Using an alternate device on the same network works fine. The issue appears to only be with a specific laptop.
I'm assuming there is something wrong with my local machine that is preventing it from loading the css, and not an issue with the github servers since it works for all other clients.
I have tried disabling adblock plus, but that makes no difference.
Chrome error message:
Refused to load the stylesheet 'http://188.8.131.52:6080/php/urlblock.php?vsys=1&cat=10030&title=shareware-and-freeware&rulename=Internet%20Access&uid=20860&post=0&token=EB94D5D2FA1AD7D50D9A0FAC66DB90B01B7E218C&url=https://github.githubassets.com%2fassets%2fframeworks-08fc49d3bd2694c870ea23d0906f3610.css' because it violates the following Content Security Policy directive: "style-src 'unsafe-inline' github.githubassets.com". Note that 'style-src-elem' was not explicitly set, so 'style-src' is used as a fallback.
Internet Explorer error message:
SEC7113: CSS was ignored due to mime type mismatch