Progress ring keeps spinning on IE9 in compatibility mode

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Open my page in IE9 in compatibility mode
2. Click ReCaptcha verification box
3. Progress ring just keeps spinning.  If I open network console nothing is 
actually happening.
4. If go into developer mode and then start the script debugger ReCaptcha then 
works.

What is the expected output? What do you see instead?
I would expect the recaptcha box to send network traffic to google for 
verification.  

What version of the product are you using? On what operating system?
This is IE9 on Windows 7.  

Please provide any additional information below.
Initially I was having issues because in compatibility mode the document 
standards were reverting back to IE7.  I have added the following meta tage to 
override that.  

<meta http-equiv="X-UA-Compatible" content="IE=edge">

Original issue reported on code.google.com by [email protected] on 14 Apr 2015 at 2:44