edit

demeter/web.py

@@ -19,6 +19,12 @@ import tornado.httpclient
 import tornado.concurrent
 
 class Base(tornado.web.RequestHandler):
+
+	def set_default_headers(self):
+        self.set_header("Access-Control-Allow-Origin", "*")
+        self.set_header("Access-Control-Allow-Headers", "x-requested-with")
+        self.set_header('Access-Control-Allow-Methods', 'POST, GET, OPTIONS')
+
 	def initialize(self):
 		try:
 			Demeter.request = self