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-rw-r--r--pyramid/renderers.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/pyramid/renderers.py b/pyramid/renderers.py
index c718cf1bb..a06067c97 100644
--- a/pyramid/renderers.py
+++ b/pyramid/renderers.py
@@ -98,7 +98,9 @@ def render_to_response(renderer_name, value, request=None, package=None):
Supply a ``request`` parameter in order to provide the renderer
with the most correct 'system' values (``request`` and ``context``
- in particular).
+ in particular). Keep in mind that if the ``request`` parameter is
+ not passed in, any changes to ``request.response`` attributes made
+ before calling this function will be ignored.
"""
try: