Are different ports on the same server considered cross-domain? (Ajax-wise)

Question

Can XMLHttpRequest send a request to http://mydomain.example:81/ from http://mydomain.example/?

Sean Kinsey · Accepted Answer · 2009-07-05T13:55:50.443

150

For two documents to be considered to have the same origin, the protocol (http/https), the domain and the port (the default 80 or :xx) have to be indentical. So no, you cannot use xhr against a different port.

edited Jul 05 '09 at 13:55

answered Jul 05 '09 at 13:08

Sean Kinsey

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Note that IE6 under certain security settings lets you request a different port on the same domain. – Alsciende Oct 13 '09 at 10:12

Are different ports on the same server considered cross-domain? (Ajax-wise)

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