What's wrong with my "back button"

For the last 3 days, every time I hit the back button something kicks me off and I need to sign in again. Every time !!!

I'm using an I phone 5 for the last year.
everything else works on the Hamb with it.

Other sites are not effected by the back button just the Hamb & just the last few days. I tried all the standard phone stuff already.

 

Same crap today too.

 

Same shit ,
Is this me, my equipment or a new glitch ?

 

Try some filler

 

Lmao !

 

It's doing it again

 

Are you working from a desktop, a tablet or a smartphone? What browser are you using?

 

Breathalyzer on the keyboard gone bad?

 

Ok, it's only this site ( amongst a universe of others) and only on my iPhone (amongst my other devices)

It has to do with the settings and private browsing and cookies.
If I select "accept cookies only from visited page" it does this kick off thing. Need to sign in again.

If I open my phone to any and all, then when I hit the back button it just kicks me out but not off not requiring a resigning in but re navigating back to where I was.