<backspace> doesn't work in githubs online editor.

[GoogleCodeExporter]

Hi,

I have this strange behavior wenn I'm using the keyboard to change code in the 
github.com's online code editor using google chrome on android: the backspace 
key simply does nothing.

What steps will reproduce the problem?
1. Go to github.com 
2. Open a repo 
3. Click on edit file
4. Type "example text"
5. Hit <backspace>

What is the expected behavior? What do you see instead?
Expected is the deletion of the character left to the cursor. Instead nothing 
happens.
What version of Hacker's Keyboard are you using, for example "1.37"? (See
"Debug" section at the bottom of the app's Settings menu.)
1.37.1419
On what phone or tablet?
Phone
If applicable, does this affect the 4-row or 5-row layout, or both? Which
language(s)?
Both, German.
Please provide any additional information below.
I'm posting this but report here and not on github because it does not happen 
with the stock keyboard.

Original issue reported on code.google.com by aichi...@gmail.com on 6 Aug 2014 at 9:27