1 files changed, 1 insertions, 1 deletions
diff --git a/src/ajax/xhr.js b/src/ajax/xhr.js
index ba4c3ec7e..5dbc33d3f 100644
--- a/src/ajax/xhr.js
+++ b/src/ajax/xhr.js
@@ -104,7 +104,7 @@ if ( jQuery.support.ajax ) {
 					// Need an extra try/catch for cross domain requests in Firefox 3
 					try {
 						for ( i in headers ) {
-							xhr.setRequestHeader( headers[ i ].n, headers[ i ].v );
+							xhr.setRequestHeader( i, headers[ i ] );
 						}
 					} catch( _ ) {}