OSSL_HTTP_open(): Complete documentation of checks for server and proxy args
@@ -68,6 +68,8 @@ I<bio> is used for writing requests and I<rbio> for reading responses.
As soon as the client has flushed I<bio> the server must be ready to provide
a response or indicate a waiting condition via I<rbio>.
+If I<bio> is given, it is an error to provide I<proxy> or I<no_proxy> arguments,
+while I<server> and I<port> arguments may be given to support diagnostic output.
If I<bio> is NULL the optional I<proxy> parameter can be used to set an
HTTP(S) proxy to use (unless overridden by "no_proxy" settings).
If TLS is not used this defaults to the environment variable C<http_proxy>
