I wrote an article on this issue a while back, Cross Domain AJAX. The easiest way to handle this if you have control of the responding server is to add a response header for: Access-Control-Allow-Origin: * This will allow cross-domain Ajax. In PHP, you’ll want to modify the response like so: <?php header(‘Access-Control-Allow-Origin: *’); ?> … Read more
Both attributes have been added to Bootstrap CDN to implement Subresource Integrity. Subresource Integrity defines a mechanism by which user agents may verify that a fetched resource has been delivered without unexpected manipulation Reference Integrity attribute is to allow the browser to check the file source to ensure that the code is never loaded if … Read more
Use JSONP. jQuery: $.ajax({ url:”testserver.php”, dataType: ‘jsonp’, // Notice! JSONP <– P (lowercase) success:function(json){ // do stuff with json (in this case an array) alert(“Success”); }, error:function(){ alert(“Error”); } }); PHP: <?php $arr = array(“element1″,”element2”,array(“element31″,”element32”)); $arr[‘name’] = “response”; echo $_GET[‘callback’].”(“.json_encode($arr).”);”; ?> The echo might be wrong, it’s been a while since I’ve used php. In … Read more
Update: Before continuing everyone should read and understand the html5rocks tutorial on CORS. It is easy to understand and very clear. If you control the server being POSTed, simply leverage the “Cross-Origin Resource Sharing standard” by setting response headers on the server. This answer is discussed in other answers in this thread, but not very … Read more
Sounds like the recommended way to do it is to have your server read the Origin header from the client, compare that to the list of domains you would like to allow, and if it matches, echo the value of the Origin header back to the client as the Access-Control-Allow-Origin header in the response. With … Read more
Access-Control-Allow-Origin is a CORS (Cross-Origin Resource Sharing) header. When Site A tries to fetch content from Site B, Site B can send an Access-Control-Allow-Origin response header to tell the browser that the content of this page is accessible to certain origins. (An origin is a domain, plus a scheme and port number.) By default, Site … Read more