From: Yann Ylavic ProxyPass
directive to some custom protocol name.
Special upgrade=NONE
and upgrade=ANY
values may be used for
-testing/forcing the upgrade but they are not recommended for production for
+testing/forcing the upgrade but they are not recommended in production for
security reasons.
-NONE
means that the check for the header is omitted but still the upgrade to
-WebSocket still happens.
-ANY
means that the upgrade will happen with any protocol asked by the client.
+NONE
means that the check for the header is omitted but still the upgrade/tunneling to
+WebSocket always happens.
+ANY
means that the upgrade/tunneling will happen using any protocol asked by the client.