Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
We have the following arrangement across the top:
However, when I logged in earlier today, I got this (I was logged in as I could post comments, etc):
I've seen this happen a few times. Why is this happening?
Well, I found out what's going on.
When compatibility mode on IE 8+ is off, then the banner appears as normal.
When compatibilitiy mode is on, the banner disappears.