I have recently setup an SSL with my website. Although, some of the previous scripts I added before the SSL setup are no longer functioning as intended. The issue is that I cannot sign-in via steam on my website using the steam login plugin that you can download from this forum(
https://vborg.vbsupport.ru/showthread.php?t=266883). I was told that it may be the site software(vBulletin) I am using which has not been updated to be aware of https when it was set up under http (or set to use that) so it could be having trouble knowing where to actually look.
Just to sum it up; With the SSL being set, you cannot register/sign in to the website through steam. Although, if I remove the http to https redirect, it allows you to sign in.