title: Using a Progressive Web App, can I retrieve the phone number of a mobile phone
body: <p>Using a Progressive Web App, can I retrieve the phone number of a mobile phone? I am guessing definitely a no - but maybe if the web browser can ask the user for access the user can give the browser access to the mobile phone number?</p>
  
  <p>This question is specifically for Android phones.</p>
  
  <p>If the webpage could just have a button that said "Copy Phone Number" and it could fill in the corresponding field with the user's phone number, that would be awesome.</p>