Add X-Requested-With header

Add X-Requested-With header ("X-Requested-With": "XMLHttpRequest") so that frameworks that support checking the request type, e.g. Laravel, Symfony, Yii (and others, not necessarily PHP related) can use their respective helper methods e.g. in Laravel Request::ajax() etc/

Author: userabuser

dist/autocomplete.js

@@ -192,7 +192,8 @@ AutoComplete.defaults = {
         }
     },
     HttpHeaders: {
-        "Content-type": "application/x-www-form-urlencoded"
+        "Content-type": "application/x-www-form-urlencoded",
+        "X-Requested-With": "XMLHttpRequest"
     },
     Limit: 0,
     MinChars: 0,
@@ -523,4 +524,4 @@ AutoComplete.defaults = {
 module.exports = AutoComplete;
 
 },{}]},{},[1])(1)
-});
+});