edit

demeter/web.py

@@ -21,9 +21,9 @@ 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')
+		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: