jquery - JSON: How do I make cross-domain JSON call

Question

I try to run the following jquery code in local Network.

 $.ajax({
     type: "GET",
     url: "http://SomeSite/MyUrl/",
     cache: false,
     data: { ... },
     dataType: "json",

     error: function (xhr, status, error) {
                                    ... 
     },
     success: function (json) {
                                    ...
     });

Everything works fine until "SomeSite" is localhost. I mean the same server from what the page was downloaded.

But when 'SomeSite' is another (not localhost) network site it looks like request hangs. Not "error", nor "success" callback functions are called. How can I make this code work?

Thank you in advance!

Answer 1

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/