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Document Vary parse error behavior

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1 parent 7b6a395 commit ab17fecd4ddb7a163e96e80a20decf2c47e24d51 @mbgrydeland mbgrydeland committed Mar 19, 2013
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  1. +8 −0 doc/sphinx/users-guide/vary.rst
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8 doc/sphinx/users-guide/vary.rst
@@ -42,6 +42,14 @@ following VCL code will normalize the Accept-Encoding headers::
The code sets the Accept-Encoding header from the client to either
gzip, deflate with a preference for gzip.
+Vary parse errors
+~~~~~~~~~~~~~~~~~
+
+Varnish will return a 503 internal server error page when it fails to
+parse the Vary server header, or if any of the client headers listed
+in the Vary header exceeds the limit of 65k characters. An SLT_Error
+log entry is added in these cases.
+
Pitfall - Vary: User-Agent
~~~~~~~~~~~~~~~~~~~~~~~~~~

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