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I am in a scenario where I have to pass a URL in xmlhttp.open to another server.I know that xmlhttp.open can be used to pass a URL on the same server. I want this URL to be passed on to another server and get the response back to the calling server.I had tried the following way(Scenario2):

Scenario1: Conventional way that works fine for same server:

xmlhttp.open("GET","../cgi-bin/perlcode.pl?root="+str+"&lang="+lang+"&out_notation="+out_notation,true);

Scenario2: Request to be sent to another server:

xmlhttp.open("GET","http://abcxyz.com/cgi-bin/perlcode.pl?root="+str+"&lang="+lang+"&out_notation="+out_notation,true);

In the first case I can get the response back on to the same server.In the second case I can't get the response back, but I can see that the request is passed onto the server abcxyz.con and it is processing the required result.

Question: Had I chosen a correct way.If so how to get back the response or else what are the other alternatives that I can choose with.

Note: I had chosen xmlhttp.open method so that I can get the result on the same web page without clicking submit button.

Nagaraju
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  • Learn about the [Same Origin Policy](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Same_origin_policy_for_JavaScript) and you will see why it does not work. – epascarello Dec 21 '13 at 06:15
  • http://stackoverflow.com/questions/2558977/ajax-cross-domain-call – Nouphal.M Dec 21 '13 at 06:45

1 Answers1

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You can not use XMLHttpRequest to request to another server (origin), according to the Same origin policy.

However, you can use some workarounds like:

https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS

http://en.wikipedia.org/wiki/JSONP

Andy Librian
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