Is it true that cross-domain ajax requests require a 'proxy' server to be used?
But what if an ajax request is made from server1.example.com to server2.example within the same domain of example.com? Would that still not work?
I've noticed websites like YouTube making ajax requests to different servers, for example youtube.com to vs1022.youtube.com. How does this work?
If anyone can provide some clarification on this topic, I would greatly appreciate it. Thank you for your time.
server1.example.com and server2.example.com are identified as incompatible domains for AJAX requests.
To resolve this issue, make sure to configure the header Access-Control-Allow-Origin: * on the server side.
In order to maintain security, it is recommended that the Access-Control-Allow-Origin: * header should be configured with a whitelist of approved domains provided by the web service provider. Alternatively, if the web services authenticate requests using authorization tokens, this step may not be necessary.
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