(function( jQuery ) {
+// Functions to create xhrs
+function createStandardXHR() {
+ try {
+ return new window.XMLHttpRequest();
+ } catch( e ) {}
+}
+
+function createActiveXHR() {
+ try {
+ return new window.ActiveXObject("Microsoft.XMLHTTP");
+ } catch( e ) {}
+}
+
var // Next active xhr id
xhrId = jQuery.now(),
xhrUnloadAbortInstalled,
// XHR used to determine supports properties
- testXHR;
+ testXHR,
+
+ // Keep track of isLocal in case it gets removed
+ // from ajaxSettings later on
+ protocolIsLocal = jQuery.ajaxSettings.isLocal;
// Create the request object
// (This is still attached to ajaxSettings for backward compatibility)
* Additionally XMLHttpRequest can be disabled in IE7/IE8 so
* we need a fallback.
*/
- function() {
- if ( !jQuery.ajaxSettings.isLocal ) {
- try {
- return new window.XMLHttpRequest();
- } catch( xhrError ) {}
+ ( protocolIsLocal ?
+ createActiveXHR :
+ function() {
+ return createStandardXHR() || createActiveXHR();
}
-
- try {
- return new window.ActiveXObject("Microsoft.XMLHTTP");
- } catch( activeError ) {}
- } :
+ ) :
// For all other browsers, use the standard XMLHttpRequest object
- function() {
- return new window.XMLHttpRequest();
- };
+ createStandardXHR;
// Test if we can create an xhr object
-try {
- testXHR = jQuery.ajaxSettings.xhr();
-} catch( xhrCreationException ) {}
-
-//Does this browser support XHR requests?
+testXHR = jQuery.ajaxSettings.xhr();
jQuery.support.ajax = !!testXHR;
// Does this browser support crossDomain XHR requests
handle,
i;
- // Apply custom fields if provided
- if ( s.xhrFields ) {
- for ( i in s.xhrFields ) {
- xhr[ i ] = s.xhrFields[ i ];
- }
- }
-
// Open the socket
// Passing null username, generates a login popup on Opera (#2865)
if ( s.username ) {
xhr.open( s.type, s.url, s.async );
}
+ // Apply custom fields if provided
+ if ( s.xhrFields ) {
+ for ( i in s.xhrFields ) {
+ xhr[ i ] = s.xhrFields[ i ];
+ }
+ }
+
// Requested-With header
// Not set for crossDomain requests with no content
// (see why at http://trac.dojotoolkit.org/ticket/9486)
// for errors, could be anything really (even a real 0)
status = 302;
}
- // All same-domain - #8125, #8152: for local files, 0 is a success
- } else if( s.isLocal ) {
+ // All same-domain: for local files, 0 is a success
+ } else if( protocolIsLocal ) {
status = 200;
+ // Opera: this notifies success for all requests
+ // (verified in 11.01). Patch welcome.
}
// Opera - #6060: sets status as 0 for 304
- // and there doesn't seem to be any way to
- // detect this case. Patch VERY welcome.
+ // Patch welcome.
}
}
}