Fixes a bug that prevented headers from being set in an ajaxSend callback. Unit test modified.

src/ajax.js

@@ -684,8 +684,7 @@ jQuery.extend({
 		if ( !transport ) {
 			done( -1, "No Transport" );
 		} else {
-			// Set state as sending
-			state = jqXHR.readyState = 1;
+			jqXHR.readyState = 1;
 			// Send global event
 			if ( fireGlobals ) {
 				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
@@ -698,6 +697,7 @@ jQuery.extend({
 			}
 
 			try {
+				state = 1;
 				transport.send( requestHeaders, done );
 			} catch (e) {
 				// Propagate exception as error if not done

test/unit/ajax.js

@@ -348,6 +348,10 @@ test(".ajax() - headers" , function() {
 
 	stop();
 
+	jQuery('#foo').ajaxSend(function( evt, xhr ) {
+		xhr.setRequestHeader( "ajax-send", "test" );
+	});
+
 	var requestHeaders = {
 			siMPle: "value",
 			"SometHing-elsE": "other value",
@@ -359,22 +363,25 @@ test(".ajax() - headers" , function() {
 	for( i in requestHeaders ) {
 		list.push( i );
 	}
+	list.push( "ajax-send" );
 
 	jQuery.ajax(url("data/headers.php?keys="+list.join( "_" ) ), {
+
 		headers: requestHeaders,
 		success: function( data , _ , xhr ) {
 			var tmp = [];
 			for ( i in requestHeaders ) {
 				tmp.push( i , ": " , requestHeaders[ i ] , "\n" );
 			}
+			tmp.push(  "ajax-send: test\n" );
 			tmp = tmp.join( "" );
 
 			equals( data , tmp , "Headers were sent" );
 			equals( xhr.getResponseHeader( "Sample-Header" ) , "Hello World" , "Sample header received" );
-			start();
 		},
 		error: function(){ ok(false, "error"); }
-	});
+
+	}).then( start, start );
 
 });