update

@@ -35,7 +35,7 @@ class NavRequest extends FormRequest
             'pid'   =>  ['required','integer','gte:0'],
             'pid'   =>  ['required','integer','gte:0'],
             'name'   =>  ['required','max:100'],
             'name'   =>  ['required','max:100'],
             'location'   =>  ['required','in:header,footer'],
             'location'   =>  ['required','in:header,footer'],
-            'url'   =>  ['required','max:200'],
+            'url'   =>  ['max:200'],
             'status'   =>  ['required','in:0,1'],
             'status'   =>  ['required','in:0,1'],
             'target'   =>  ['required','in:0,1'],
             'target'   =>  ['required','in:0,1'],
             'sort'   =>  ['required','integer','gte:0']
             'sort'   =>  ['required','integer','gte:0']