JSON: How do I make cross-domain JSON call

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I had the same issue. Trying to get json from a server to wich I dind’t had access (=> no JSONP).

I found http://benalman.com/projects/php-simple-proxy/ Add the php proxy to your server and do the ajax call to this file.
“Any GET parameters to be passed through to the remote URL resource must be urlencoded in this parameter.”

$.ajax({
   type: 'GET',
   url:'proxy.php?url=http://anyDomain.com?someid=thispage',
   dataType: "json",
   success: function(data){
      // success_fn(data);
   },
   error: function(jqXHR, textStatus, errorThrown) {
      // error_fn(jqXHR, textStatus, errorThrown);
   }
});

where proxy.php (the file from Ben Alman) is hosted in your domain

Alternative (which I found to be second best to this):
http://james.padolsey.com/javascript/cross-domain-requests-with-jquery/

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