internal: add internal paths to HiddenFiles (#2133)

* Append Internal paths to Caddy config HiddenFiles

* gofmt

* Reuse a variable

* Update caddyhttp/internalsrv/setup.go
Co-Authored-By: magikstm <myskina@gmail.com>

caddyhttp/internalsrv/setup.go

@@ -33,7 +33,12 @@ func setup(c *caddy.Controller) error {
 		return err
 	}
 
-	httpserver.GetConfig(c).AddMiddleware(func(next httpserver.Handler) httpserver.Handler {
+	// Append Internal paths to Caddy config HiddenFiles to ensure
+	// files do not appear in Browse
+	config := httpserver.GetConfig(c)
+	config.HiddenFiles = append(config.HiddenFiles, paths...)
+
+	config.AddMiddleware(func(next httpserver.Handler) httpserver.Handler {
 		return Internal{Next: next, Paths: paths}
 	})