Operation Aborted Err in IE7

We have developed an application using VS2010 in MVC pattern. During the development we completely used IE8 to execute this application which worked brightly without any issue. But the same application gives error when we execute this by IE7. The clear error message which we are getting from IE7 is given below for your reference

When we click OK button from error message, page is turning to “Page can’t display error”.  We know by going through JS files we could fix this but the challenge is we have used many JS files across application. And debugging each JS file to identify error is really pathatic. If any one of your project faced such issue and resolved it, please help us to fix this issue.

 

Thanks in Advance