UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36

Steps to reproduce the problem:
1. hit backspace. Nothing happens. hit it again and you get told to use a stupid key combination.
2. 
3. 

What is the expected behavior?
go back.

What went wrong?
You apparently decided to fuck it up.

Did this work before? Yes Before some stupid update from you.

Chrome version: 52.0.2743.82  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash 22.0 r0

Fix it.