SCRIPT70: Permission denied Accessing iFrame in IE

Question

I am having some issues in IE with uploading files through a hidden iFrame. Actually the file upload is working fine but my jQuery code to display the success dialog and add the link to a table is not firing. Using the IE developer tools I discovered SCRIPT70: Permission denied error message. This is working fine in Chrome so I'm at a loss to what the issue is in IE. I should mention I am using IE10 so I imagine the issue exist in the previous versions of IE as well. Essentially what I am trying to do is simulate Ajax like file upload using a hidden iFrame since we have to support legacy browsers. When the iFrame post successfully its response has a div which contains JSON which I read then parse. The data from the JSON is used to display a message to the user indicating the status of the file upload as well and add the link to the page by adding a row to a table. However in IE the chechUploadResponse function does not even appear to be firing. Javascript: ``` $(document).ready(functi…

Accepted Answer

I know this post is a bit old, but this may help future seekers for the mystery around IE.

The solution proposed needs to be applied to the library of jQuery. The problem is explained here: https://connect.microsoft.com/IE/feedback/details/802251/script70-permission-denied-error-when-trying-to-access-old-document-from-reloaded-iframe

and the solution is given here:

https://github.com/jquery/sizzle/blob/5b3048605655285a81b06fbe4f49f2a14a8d790f/src/sizzle.js#L472-L480

An alternative solution is located under this ticket at jQuery bug reporting site: http://bugs.jquery.com/ticket/14535 It is posted by user muley and a JSFiddle is provided as well: http://jsfiddle.net/xqb4s/

The code that needs to be added in jQuery library in this case is:

```
// MY EDIT - this try/catch seems to fix IE 'permission denied' errors as described here:
// http://bugs.jquery.com/ticket/14535
try{
    document === document; //may cause permission denied
}
catch(err){
    document = window.document; //resets document, and no more permission denied errors.
} 
```

Under the:

```
function Sizzle( selector, context, results, seed )
```

SCRIPT70: Permission denied Accessing iFrame in IE

Solution

Problem