Forum allows login, then instantly logs me out
Today, 7/14/2019, when I'd login, the forum software said "welcome <name>" - or similar.
In less than 2 seconds, it was redirecting me to another page (may have showed a msg on that).
The page it took me to (I think forums) showed I wasn't logged in. I repeated the process a couple times - same thing.
I'm using Firefox 68 in Linux. I use NoScript & that may be the problem, though I didn't spot an obvious reason in its log (via Firefox's browser console log, showing all communication with or concerning the current site.
I allowed all other parties scripts in NS. For some reason, *cloudfront.net didn't show in NS's list until I allowed others. After reloading the site, then cloudfront showed.
I'm not sure if cloudfront was part of the problem or if hyundaiperformance relies on certain other 3rd party scripts being allowed, or else staying logged in fails?
Finally, I went to this Site Issue sub forum - after I allowed cloudfront's scripts. From there I tried logging in again & it worked this time. Least, didn't log me out in 2 seconds.
I have seen a very few sites over decades with unsuccessful login on some pages (or home page), but logging in from other site pages worked. And unsuccessful logins often had nothing to do w/ NoScript because I wasn't using it or disabled it on sites having problems - & it didn't solve the problem.