"acecss Denied To Content Document" Error In Ie9 With Goog.net.iframeio

I am trying to use goog.net.IFrameIO to upload a file and get a JSON response from server after uploaded file is processed. It works fine on Chrome and Safari, but does not with wo

Solution 1:

The IframeIO library, for IE(version less than 11) creates an iframe to which the HTTP response is posted after file upload.

But iframe in IE9/10(not sure about 8 or 11) does not accept HTTP response with content-type JSON. The response content-type need to be changed to "text/plain" for IE9/10, to make it work.