Sign in page inifnitely refreshing "Checking your browser"

There have been many instances of this bug and it only seems to happen on GitLab.

It’s always fixed but it never really is.

I am using Firefox ESR, I have enabled all cookies, I don’t have fingerprinting disabled, I allowed canvas extraction, I don’t have any VPN on, my IP is not on any blacklists, I have “Enhanced Tracking Protection” disabled, I have all the requirements for you to fingerprint me and the page still infinitely refreshes and I can never log in. There are many more websites that use Cloudflare and this never happens anywhere else.

I wanted to search for the same issue inside GitLab.org / GitLab · GitLab but I can’t even search because I am not logged in.

+ tens more