Sending a CORS Request in IE

Xueyuan Dai

From the time we added CORS support for ASP.NET WEB API, we have seen many questions on its usage, including questions about sending cross-origin requests (CORS) from IE. IE 10 and higher fully support using XMLHttpRequest to send cross-origin requests. CORS for XHR in IE10  is a great blog post on this approach.

CORS is also supported in IE 8/9, however, in a different way. Instead of XMLHttpRequest, an XDocumentRequest object is used to send cross-origin requests. Here’s another good reading about it: If you’re using jQuery, here’s how to send CORS in IE 8/9

Last, sending CORS request is not supported in IE 6/7.


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