mention optional use of scheme on OIDCOutgoingProxy
# The default is "On"; use "Off" only for testing and debugging because it renders your system insecure.
#OIDCScrubRequestHeaders [On|Off]
-# Specify an outgoing proxy for your network.
+# Specify an outgoing proxy for your network. When running on a platform with a recent version of
+# libcurl you can also specify the network protocol, see: https://curl.se/libcurl/c/CURLOPT_PROXY.html
# When not defined no outgoing proxy is used.
-#OIDCOutgoingProxy <host>[:<port>]
+#OIDCOutgoingProxy [<scheme>://]<host>[:<port>]
# Defines the action to be taken when an unauthenticated request is made.
#
