Why would something related to account recovery be cached in such a way that it is the first thing which gets rendered? I really doubt that it is related to cac

Why would something related to account recovery be cached in such a way that it is the first thing which gets rendered? I really doubt that it is related to caching. Also, that tab was idle for a couple of minutes while I was trying to load GitHub in another tab multiple times before I accidentally closed the browser (just that window, I had other windows of the same browser instance open).