fix #2736 - allow lists to be passed through to response_class init

6 years ago · 3666a584fd
1 changed files with 1 additions and 1 deletions
--- a/flask/app.py
+++ b/flask/app.py
@ -1923,7 +1923,7 @@ class Flask(_PackageBoundObject):
        status = headers = None

        # unpack tuple returns
-        if isinstance(rv, (tuple, list)):
+        if isinstance(rv, tuple):
            len_rv = len(rv)

            # a 3-tuple is unpacked directly