title: How to allow mailto and tel URL schemes in WebView Flutter?
body: <p>I am developing WebApp in Flutter but when I click on <code>tel:987654321</code> or <code>mailto:</code> links going page Not Found,
  To open the default app in mobile I am using url_launcher dependency But in the background when I click WebView also run the same link and go to page not found.</p>
  
  <p>How to handle this task?</p>