UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.46 Safari/537.36

Steps to reproduce the problem:
1. Navigate to some web site
2. Press backspace to go previous page
3. Backspace key not working

What is the expected behavior?
Bakcpace key should navigate to previous page

What went wrong?
Backspace key stopped navigating to he previous page

Did this work before? N/A 

Chrome version: 53.0.2785.46  Channel: beta
OS Version: 10.0
Flash Version: Shockwave Flash 22.0 r0