Fix #1757

2017-09-07 10:18:41 +01:00
parent 087280ec17
commit 3ecdd1c11b
1 changed files with 1 additions and 1 deletions
--- a/gluon/globals.py
+++ b/gluon/globals.py
@@ -331,7 +331,7 @@ class Request(Storage):
        user_agent = session._user_agent
        if user_agent:
            return user_agent
-        http_user_agent = self.env.http_user_agent
+        http_user_agent = self.env.http_user_agent or ''
        user_agent = user_agent_parser.detect(http_user_agent)
        for key, value in user_agent.items():
            if isinstance(value, dict):