Preserve tailing backslash in URL paths (#7678)

Fixes #7649

pkg/net/url.go

@@ -21,6 +21,7 @@ import (
 	"errors"
 	"net/url"
 	"path"
+	"strings"
 )
 
 // URL - improved JSON friendly url.URL.
@@ -100,6 +101,11 @@ func ParseURL(s string) (u *URL, err error) {
 		uu.Path = path.Clean(uu.Path)
 	}
 
+	// path.Clean removes the trailing '/' and converts '//' to '/'.
+	if strings.HasSuffix(s, "/") && !strings.HasSuffix(uu.Path, "/") {
+		uu.Path += "/"
+	}
+
 	v := URL(*uu)
 	u = &v
 	return u, nil