diff --git a/lib/utils.js b/lib/utils.js
index <HASH>..<HASH> 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -74,7 +74,7 @@ var xhrDefaultHeaders = {
     "User-Agent": '',
     "Accept": '',
     "Accept-Language": '',
-    "Content-Type": "T"
+    "Content-Type": "text/plain;charset=UTF-8"
 };
 
 if (navigator &&
Use more standard 'text/plain' rather than custom 't' type for xhr