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views:

283

answers:

2
+2  Q: 

AJAX request from one subdomain to another subdomain, but on the same domain

Hi all!

I know that you can't do cross-domain ajax requests unless you use a 'proxy' one server.

However, if I did an ajax request from server1.example.com to server2.example, would that not work, even though it's on the same domain of example.com?

I'm pretty sure sites such as YouTube do ajax requests to different servers. such as a request from youtube.com to vs1022.youtube.com etc.

Any clarification on this would be superb. Thank you for your time.

+1  A: 

server1.example.com and server2.example.com considered as cross domain for AJAX request.

You would need to set the header Access-Control-Allow-Origin: * at server side.

S.Mark  2010-01-20 13:17:45
it's really as simple as that? Excellent, but, i'm curious, why doesn't everyone just do that and not have the hassle of creating proxies etc.? :-)
Jamie  2010-01-20 13:22:29
Basically simple yes, you could read more at https://developer.mozilla.org/en/HTTP_access_control, why not allowed by default would be security reasons and policies. For example, if allowed, `server1.example.com` can load all the data from `server2.example.com` with ajax real-time and then very good phishing can be done :-)
S.Mark  2010-01-20 14:45:44
A: 

Does is also work in IE?

Steffen  2010-09-30 12:47:34

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