From 06ec917ddedc618944670b39ccd5f4cb862882b2 Mon Sep 17 00:00:00 2001
From: Armin Ronacher <armin.ronacher@active-4.com>
Date: Mon, 19 Apr 2010 23:54:38 +0200
Subject: [PATCH] Only escape backslashes if they follow "<" in JSON dumping
 for templates.

---
 flask.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flask.py b/flask.py
index 055b46cf..89a4fee5 100644
--- a/flask.py
+++ b/flask.py
@@ -261,7 +261,7 @@ def _get_package_path(name):
 
 def _tojson_filter(string, *args, **kwargs):
     """Calls dumps for the template engine, escaping Slashes properly."""
-    return json.dumps(string, *args, **kwargs).replace('/', '\\/')
+    return json.dumps(string, *args, **kwargs).replace('</', '<\\/')
 
 
 class Flask(object):