IE10/11 Ajax XHR error - SCRIPT7002: XMLHttpRequest: Network Error 0x2ef3
internet-explorer, javascript, jquery, json, php
Solution
The OP provided a WireShark capture showing that the server requested a certificate using the HTTPS `CertificateRequest` message and the client then immediately `FIN`d the connection.
After configuring the server not to request a client certificate, the problem went away.
Using Fiddler also would make the problem disappear because, unless you configure it to do so, Fiddler will never request a client certificate from the browser.
I'm wondering if only the affected client machine had a matching certificate and/or whether the `withCredentials` flag on the CORS XHR request is relevant in this scenario.
Problem
I've been working on this problem for a few days and reaching out on this forum since I feel like I've exhausted my options. I have a form hosted on a Drupal 7 website and need to submit the form values to an external url. The form uses a POST request over the HTTPS protocol via jQuery.AJAX - Form works fine in Chrome, Firefox, and Safari - I am receiving the following error in IE10+ console (and the ajax call always goes into the error function when using IE10+): SCRIPT7002: XMLHttpRequest: Network Error 0x2ef3, Could not complete the operation due to error 00002ef3 I've tried the following: adding contentType: ``` // causes all of the jQuery callbacks to error out "application/json; charset=utf-8", ``` attempting an Ajax GET call before the actual POST (as suggested on another SO thread) added `header( 'Content-Type: application/json; charset=utf-8' );` to the request set `crossDomain: true` The appropriate CORS headers have been added and the form code is pasted below: ``` $.ajax({ url: "[URL]", //the page to receive the form data crossDomain: true, type: "POST", data: dataString, //posting to API dataType: "json", //the data type the function should expect back from the server success: function(data) { if (data.response_status == "1") { //error for at least 1 field //display error message } else { //display thank you label next to input } } else { //All form fields completed successfully! Redirect user to Thank you confirmation page } }, error: function(jqXHR, textStatus, errorThrown) { alert("there is an error!"); console.log("in error section"); console.log("jqXHR: " + jqXHR); console.log("jqXHR.responseText: " + jqXHR.responseText); console.log("textStatus: " + textStatus); console.log("errorThrown: " + errorThrown); data = $.parseJSON(jqXHR.responseText); console.log("parseJSON data: " + data); } }); }); }); ``` I've read SCRIPT7002: XMLHttpRequest: Network Error 0x2ef3, Could not complete the operation due to error 00002ef3 Any guidance would be helpful! THANKS