title: How do I add trusted certificate to my React Project.?
body: <p>I have 
  .cer file
  .pfx file
  .pem file
  .key file</p>
  
  <p>with me.</p>
  
  <p>Dose anybody knows how to add 'valid certificate' in React Project.?</p>
  
  <p>I have changed </p>
  
  <pre><code>{
    "start": "HTTPS=true react-scripts start"
  }
  </code></pre>
  
  <p>by this my project is now running on HTTPS but with localhost's certificate.
  How can I add trusted certificate instead of this.</p>