add content-type: application/json; charset=utf-8

src/storage_manager/config/config.js

@@ -8,7 +8,7 @@ define(function () {
 		autosave: 1,
 
 		// Indicates if load data inside editor after init
-    autoload: 1,
+		autoload: 1,
 
 		// Indicates which storage to use. Available: local | remote
 		type: 'local',
@@ -49,5 +49,10 @@ define(function () {
 		//Callback after request
 		onComplete: function(jqXHR, status){},
 
+		// set contentType paramater of $.ajax
+		// true: application/json; charset=utf-8' 
+		// false: 'x-www-form-urlencoded'
+		contentTypeJson: false 
+
 	};
 });

src/storage_manager/model/RemoteStorage.js

@@ -11,6 +11,7 @@ define(['backbone'],
         params: {},
         beforeSend: function(){},
         onComplete: function(){},
+        contentTypeJson: false
       },
 
       /**
@@ -32,7 +33,8 @@ define(['backbone'],
           complete: this.get('onComplete'),
           method: 'POST',
           dataType: 'json',
-          data: fd,
+          contentType: this.get('contentTypeJson') ? 'application/json; charset=utf-8': 'x-www-form-urlencoded',
+          data: this.get('contentTypeJson') ? JSON.stringify(fd): fd,
         }).always(function(){
           if (typeof clb == 'function') {
             clb();