text: //
  //  NSURL+ZWUtility.h
  //  WebBrowser
  //
  //  Created by 钟武 on 2017/2/18.
  //  Copyright © 2017年 钟武. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface NSURL (ZWUtility)
  
  - (BOOL)isErrorPageURL;
  - (NSURL *)originalURLFromErrorURL;
  - (BOOL)isLocal;
  
  @end
  