this makes some use cases difficult.
this method is called by getHttpListenerProtocol(String,int).
That method is necessary for v3 Prelude, v3, 3.0 and 3.0.x servers.
It does not need to be called for 3.1 servers, since those servers provide redirects in situations where the user and/or a program attempt to use http to access a secured listener.
lowering to p4...
The listed servers are obsoleted by 3.1.1
Targeting to next release. We have to get plugin working correctly even with old 3.0 versions.