From 876dc306cd508a041ccc62cf87397514fce4c9f3 Mon Sep 17 00:00:00 2001
From: Carlton Gibson <carlton.gibson@noumenal.es>
Date: Wed, 16 Jan 2019 16:19:56 +0100
Subject: [PATCH] Refs #30102 -- Added comment on use of Template without
 placeholders in page_not_found() view.

---
 django/views/defaults.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/django/views/defaults.py b/django/views/defaults.py
index 6c394490ab..8bf60c9d74 100644
--- a/django/views/defaults.py
+++ b/django/views/defaults.py
@@ -52,6 +52,8 @@ def page_not_found(request, exception, template_name=ERROR_404_TEMPLATE_NAME):
         if template_name != ERROR_404_TEMPLATE_NAME:
             # Reraise if it's a missing custom template.
             raise
+        # Render template (even though there are no substitutions) to allow
+        # inspecting the context in tests.
         template = Engine().from_string(
             '<h1>Not Found</h1>'
             '<p>The requested resource was not found on this server.</p>')