1 files changed, 9 insertions, 0 deletions
diff --git a/src/ajax.js b/src/ajax.js
index 44ec6e83b..0563c924b 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -861,4 +861,13 @@ jQuery.each( [ "get", "post" ], function( _i, method ) {
 	};
 } );
 
+jQuery.ajaxPrefilter( function( s ) {
+	var i;
+	for ( i in s.headers ) {
+		if ( i.toLowerCase() === "content-type" ) {
+			s.contentType = s.headers[ i ] || "";
+		}
+	}
+} );
+
 export default jQuery;