title: How fix 'Failed to load resource: the server responded with a status of 403'?
body: <p>The javascripts didnt loaded eventhough I can open it directly via web browser.</p>
  
  <ul>
  <li>I want to import product in my Woocommerce site using builtin import functionality.</li>
  <li>When I run the importer, the progress bar didnt move even though I only imported 1 row of product. </li>
  <li>After I open the console, there are error "Failed to load resource: the server responded with a status of 403"when loading the wc-product-import.min.js. But, I can open the script directly when I use "Open in new Tab". </li>
  </ul>
  
  <p>How to fix this problem?</p>