Ajax Error in IE 11: XMLHttpRequest: Network Error 0x8, Not enough storage is available to process this command

Question

an AJAX call I'm running is generating the following error in the console of Internet Explorer 11 (but works fine in Chrome).

SCRIPT7002: XMLHttpRequest: Network Error 0x8, Not enough storage is available to process this command.

The code being used is as follows:

    $.ajax({
     url: '../../../../ajax/create',
     dataType: 'json',
     cache: false,
     success: function(result) { alert('success'); }
    });

This error goes away if I reduce the amount of work run at:

ajax/create

My goal is to have IE 11 handle the call without being forced to reduce the processes. It takes around 25 seconds to run (on Chrome). I've raised the PHP memory limit and timeout limit on "../ajax/create" with no luck (dedicated server so no limitations).

Any ideas?