- // Set header so the called script knows that it's an XMLHttpRequest
- xml.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+ // Need an extra try/catch for cross domain requests in Firefox 3
+ try {
+ // Set the correct header, if data is being sent
+ if ( s.data )
+ xml.setRequestHeader("Content-Type", s.contentType);
+
+ // Set the If-Modified-Since header, if ifModified mode.
+ if ( s.ifModified )
+ xml.setRequestHeader("If-Modified-Since",
+ jQuery.lastModified[s.url] || "Thu, 01 Jan 1970 00:00:00 GMT" );
+
+ // Set header so the called script knows that it's an XMLHttpRequest
+ xml.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+
+ // Set the Accepts header for the server, depending on the dataType
+ xml.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ?
+ s.accepts[ s.dataType ] + ", */*" :
+ s.accepts._default );
+ } catch(e){}