About timeout

Hello everybody,
When typing a title for a new message in the forums, you see a preview of a few messages in the forums, where the used words appear.
Good idea, is not it ?
I went to read one of them in a new browser tab, and while I read it, the timeout for my authentication was reached.
So, I was disconnected, and I feared what I typed was missed. In fact no, this is planed, I found it back after re-authenticating.
Well, was I so long to read the near topics ?
Was it a bad idea to open a new tab ? That was to come back easier to my question.

I don’t know. It’s probably related to Discourse. I never had to re-authenticate on the forum if I was connected on CG though.