Ajax Call Freezes Ui In Internet Explorer But Works Fine In Firefox

I'm making an AJAX call (JSP page in Savvion Business Manager) and I want to show the LOADING SPINNER while AJAX request is processed It's working fine in Firefox, but in Internet

Solution 1:

I guess the setupAjax.myFunction is making an async AJAX call. Probably when accessed only from IE. It would be more clear if you post the definition of setupAjax.myFunction or the line in which the AJAX call is made exactly.