Issue with login displayed when links are clicked

[BantyChooks]

A few minutes ago, I clicked on the link in this post to see if there was an image available. Instead, I got the login page for @bruceha2000 . As you can see, I am NOT him, lol. Clicking the link again repeated the strange error. No other links have done this when I click them. I have not restarted my computer or browser (which is Firefox, don't know version #, sorry), but I figured BYC moderation might like to see this kind of an error even if it is a one-time thing. I can't view his alerts, though, so it isn't a security issue... just a weird one. I'm on a computer with a Ubuntu OS.

 

[Lazy Farmer]

Bruce is up to no good!
Hi Bruce.. I know you will be here soon. Long time no see..

 

[Lazy Farmer]

I clicked on the link titled THIS POST AND IT BROUGHT ME HERE...
Today at 12:32 PM #36237

tHE ATTACHMENT i CLICKED GAVE AN ERROR POST.
SORRY ABOUT CAPS.. MOBILE PHONE NOT MY FRIEND

 

[Kiki]

When I click on the link in that post (the post that is linked in post number one of this thread)I get this:

I was hoping to get Bruce's screen like @BantyChooks did but I did not.

 

[BantyChooks]

When I click on the link in that post (the post that is linked in post number one of this thread)I get this:
View attachment 1535867

I was hoping to get Bruce's screen like @BantyChooks did but I did not.

You know, he did post on that thread seconds after I clicked the link. I wonder if we were viewing at the same time and that made it do something funky?

 

[casportpony]

Very strange! Too bad it's not repeatable.