title: Use wkwebview back reload
body: <p>I am using WKWebview，I want that when I click the back button, it refresh the page rather than reading the page cache.</p>
  
  <pre><code>if (self.webView.canGoBack) {
      [self.webView goBack];
      [self.webView reload];
  }
  </code></pre>
  
  <p>But, when you return to certain pages these are loaded twice and can't return to the first page.</p>
  
  <p>Do not know to have people meet the same requirements and how to solve? The premise is not use UIWebview.</p>