Update handlers.py

Author: benediktjohannes

Lib/wsgiref/handlers.py

@@ -246,7 +246,7 @@ def start_response(self, status, headers,exc_info=None):
         status = self._convert_string_type(status, "Status")
 
         regex = (_name_disallowed_re if name else _value_disallowed_re)
-        if regex.search(value):
+        if regex.search(status):
             raise ValueError("Control characters are not allowed in headers and status")
 
         self._validate_status(status)