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I've to make a POST call(with parameter) to an asp form which is located on another server.

For development, I did this on the same server, and it works perfectly, but now I'm testing it on another server, and instead of receiving a 200 status, I receive a 0 status.

I think it's because it's a cross-domain AJAX call, it's the only thing which changed. So how can I make this call? Is there any file I can put on the server/client to allow this call(like flash, ...)?

Thank you!

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  • for futher help we might need to know the natre of the ajax call Commented Jul 25, 2011 at 12:41

2 Answers 2

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Yes, assuming you can change the server you connect to

You can implement Cross Origin Resource Sharing (CORS)

You need the server to return Access-Control-Allow-Origin: * if you want to allow all domains to access, otherwise return Access-Control-Allow-Origin: http://yourdomain.com

If you cannot change the server you are accessing, you need to use a proxy on the server your script comes from - alternatively investigate if they have published an API to return for example JSONP

More details here

and several links to the right of this questions

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4 Comments

the support seems quite limited at the moment.
I took a look at your link, but I can't found where I should declare all these "Access-Control-Allow-Origin", ...
@dvhh - it is supported by most modern browsers i.e. FF3.5+, Safari5, IE8+ (using XDR)
Okay, so it's seems that what I want isn't possible
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You can either create a proxy script, or use jsonp. The easier course would be to use a proxy script on your server.

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Unfortunately, I'm not able to modify anything on the server
another solution would be to rewrite your ajax call to use an iframe instead (unfortunately this is a little bit doggy)
@dvhh but he would only be able to send data, not receive any reply
You cannot do JSONP with a POST request.

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