Implement HTTP-only mode

This is very useful for reserve proxies
in cases when TLS passthrough is not desired.

config/setup.go

@@ -84,6 +84,9 @@ func mergeServerConfig(ctx *cli.Context, config *ServerConfig) {
 	if ctx.IsSet("blacklisted-paths") {
 		config.BlacklistedPaths = ctx.StringSlice("blacklisted-paths")
 	}
+	if ctx.IsSet("http-only-mode") {
+		config.HttpOnlyMode = ctx.Bool("http-only-mode")
+	}
 
 	// add the paths that should always be blacklisted
 	config.BlacklistedPaths = append(config.BlacklistedPaths, ALWAYS_BLACKLISTED_PATHS...)