title: Facebook browser/webview, can't send sms: net::ERR_UNKNOWN_URL_SCHEME
body: <p>I need to send an SMS from a webpage advertised on Facebook, but there is a major issue: the protocol <code>sms:</code> doesn't work at all, giving the error <code>net::ERR_UNKNOWN_URL_SCHEME</code>.</p>
  
  <p>Is there a way to leave the app and open a link in the default browser, or another way to send the SMS (by opening the SMS outbox)?</p>