IE10/11 Ajax XHR error - SCRIPT7002: XMLHttpRequest: Network Error 0x2ef3

Question

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 an

Answer 1

The OP provided a WireShark capture showing that the server requested a certificate using the HTTPS CertificateRequest message and the client then immediately FINd 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.