问题:

Below is an XDomainRequest being made from javascript to a PHP Backend on Nginx on a different subdomain. The return result always executes the error function, and XDomainRequest doesn't give debugging details. Is there something wrong with the code?

Javascript

var xdr = new XDomainRequest();                 xdr.open(method.toLowerCase(), url);         timeout = 10000;         // Required to XDomainRequest works         xdr.timeout = timeout;         xdr.onprogress = function() {};          xdr.ontimeout = function() {           completeRequest(callback, 408, 'Timeout', 'Content-Type: text/plain');           xdr.abort();         };          xdr.onload = function() {           completeRequest(callback, 200, xdr.responseText, 'Content-Type: ' + xdr.contentType);                   };          xdr.onerror = function() {           completeRequest(callback, 500, 'Error', 'Content-Type: text/plain');           xdr.abort();         };           $browserDefer(function () {           xdr.send();         }, 0); //fix IE bug that raises '$apply already in progress' on cached requests          if (timeout > 0) {           $browserDefer(function() {             status = -1;             xdr.abort();           }, timeout);         }

PHP with PreFlight Options Check

if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {             if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_METHOD']) && ($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_METHOD'] == 'POST' || $_SERVER['HTTP_ACCESS_CONTROL_REQUEST_METHOD'] == 'DELETE' ||  $_SERVER['HTTP_ACCESS_CONTROL_REQUEST_METHOD'] == 'PUT' )) {                      header('Access-Control-Allow-Origin: ' . $_SERVER['HTTP_ORIGIN']);                      header("Access-Control-Allow-Credentials: true");                       //header('Access-Control-Allow-Headers:  *,X-Requested-With,Content-Type');                      header('Access-Control-Allow-Headers: Content-Type');                      header('Access-Control-Allow-Methods: POST, GET, OPTIONS, DELETE, PUT'); // http://stackoverflow.com/a/7605119/578667                      header('Access-Control-Max-Age: 86400');                       echo PVResponse::createResponse(200, 'Successful Connection');              }           exit();         }          header('Access-Control-Allow-Origin: '. $_SERVER['HTTP_ORIGIN'] );         header('Access-Control-Allow-Credentials: true' );         header('Access-Control-Request-Method: *');         header('Access-Control-Allow-Methods: POST, GET, PUT, DELETE, OPTIONS');         header('Access-Control-Allow-Headers: *,x-requested-with,Content-Type');         header('X-Frame-Options: DENY');  //Execute rest of PHP code after headers have been set

I've gotten cross subdomain calls to work in every other browser. Is there something special for IE8 and IE9, like a special Allow-Headers or something else I am missing?

转载请标明出处:Why is XDomainRequest Not Working In IE8 or IE9

文章来源: Why is XDomainRequest Not Working In IE8 or IE9

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