doc: document HPE_HEADER_OVERFLOW error

PR-URL: nodejs#23963 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Franziska Hinkelmann <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Vse Mozhet Byt <[email protected]>
shakir-abdo · Oct 30, 2018 · 0a4a08f · 0a4a08f
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commit 0a4a08f
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diff --git a/doc/api/errors.md b/doc/api/errors.md
@@ -1843,6 +1843,14 @@ unknown file extension.
 
 Creation of a [`zlib`][] object failed due to incorrect configuration.
 
+<a id="HPE_HEADER_OVERFLOW"></a>
+### HPE_HEADER_OVERFLOW
+
+Too much HTTP header data was received. In order to protect against malicious or
+malconfigured clients, if more than 80KB of HTTP header data is received then
+HTTP parsing will abort without a request or response object being created, and
+an `Error` with this code will be emitted.
+
 <a id="MODULE_NOT_FOUND"></a>
 ### MODULE_NOT_FOUND