diff --git a/wsme/exc.py b/wsme/exc.py
index 5f793a2..6a3fda4 100644
--- a/wsme/exc.py
+++ b/wsme/exc.py
@@ -46,4 +46,3 @@ class UnknownFunction(ClientSideError):
 
     def __unicode__(self):
         return _(u"Unknown function name: %s") % (self.name)
-
diff --git a/wsme/restjson.py b/wsme/restjson.py
index f55f1a2..5eb4130 100644
--- a/wsme/restjson.py
+++ b/wsme/restjson.py
@@ -90,7 +90,11 @@ def binary_fromjson(datatype, value):
 class RestJsonProtocol(RestProtocol):
     name = 'REST+Json'
     dataformat = 'json'
-    content_types = ['application/json', 'application/javascript', 'text/json', '', None]
+    content_types = [
+        'application/json',
+        'application/javascript',
+        'text/javascript',
+         '']
 
     def decode_arg(self, value, arg):
         return fromjson(arg.datatype, value)