When trying to find text on a repo page, the icons for the find options and buttons do not load. Similarly, hover text is not shown.

I tried clearing the cache, removing the cookies and site data, even using a different browser, but nothing helps.
I asked some of my coworkers, and they experience the same issue on MS Edge, Chrome and Safari, so it is not just my computer.
In the developer tools, I see some 404 errors for CSS and font files on the page.