Fix registry delete (#532)

- Make make it possible to delete `"§4fda`
- Reject non urls for registry-address
- Fix #520

cmd/server/server.go

@@ -120,7 +120,6 @@ func run(c *cli.Context) error {
 	var webUIServe func(w http.ResponseWriter, r *http.Request)
 
 	if proxyWebUI == "" {
-		// we are switching from gin to httpservermux|treemux,
 		webUIServe = setupTree(c).ServeHTTP
 	} else {
 		origin, _ := url.Parse(proxyWebUI)

cmd/server/setup.go

@@ -305,6 +305,7 @@ func setupCoding(c *cli.Context) (remote.Remote, error) {
 
 func setupTree(c *cli.Context) *gin.Engine {
 	tree := gin.New()
+	tree.UseRawPath = true
 	web.New(
 		web.WithSync(time.Hour*72),
 		web.WithDocs(c.String("docs")),