diff --git a/app.py b/app.py
index 26af1c98..2f67ad57 100644
--- a/app.py
+++ b/app.py
@@ -89,6 +89,7 @@ class BaseView(HTTPMethodView):
         data = self.data(request, name, hash, **kwargs)
         if as_json:
             r = response.json(data)
+            r.headers['Access-Control-Allow-Origin'] = '*'
         else:
             r = jinja.render(
                 self.template,