we are getting the following error only on Apple machines (ipad included) across all browser. the funny thing is that its only when the page is loaded. it's loaded with an ajax call and all we ever see is the loading panel. on the mac computer we were able to get the error
RadUpload Ajax callback error. Source url returned invalid content:
any suggestions on what we can try. the page works fine on PC across all browsers. there is an upload on the page but its not uploading anything at the time of the error. its just loading the page. the page is on a RadTab if that makes a difference.