nginx caching problem

Question

He has cached the HTML. I followed the online method to prevent him from caching the HTML, but it still doesn’t work. I think this is a strange problem. If I change the content, it will not be displayed. If I input a random character in the editor, he will Displays the last character written. . Ask God!

 location ~ .*\.(html|html)$
    {
      add_header
   }这个方法不好使

Answer 1

Is it cached by nginx or cached by the browser