From a9e2ee71c31fd6a5187e8247b4d2743cf79ae9fa 2014-08-18 17:47:20
From: MinRK <benjaminrk@gmail.com>
Date: 2014-08-18 17:47:20
Subject: [PATCH] allow slash in root->tree redirect

before #6117, only `/base_url/` worked,
after #6117, only `/base_url worked,
after this PR, both should work.

---

diff --git a/IPython/html/tree/handlers.py b/IPython/html/tree/handlers.py
index 61d1417..376575d 100644
--- a/IPython/html/tree/handlers.py
+++ b/IPython/html/tree/handlers.py
@@ -80,5 +80,5 @@ default_handlers = [
     (r"/tree%s" % notebook_path_regex, TreeHandler),
     (r"/tree%s" % path_regex, TreeHandler),
     (r"/tree", TreeHandler),
-    (r"", TreeRedirectHandler),
+    (r"/?", TreeRedirectHandler),
     ]