mod_auth_oauth_external: Authenticate against an OAuth 2 provider
But suddenly unsure whether this constitutes an OAuth "client" or
something else? Resource server maybe?
Introduction
============
This module attempts to sanitize XHTML-IM messages.
It does **not** attempt to sanitize any CSS embedded in `style`
attributes, these are instead stripped by default.
Configuration
=============
Option Type Default
------------------------ --------- ---------
`strip_xhtml_style` boolean `true`
`bounce_invalid_xhtml` boolean `false`