title: Sahi sign in to mailtrap.io issue
body: <p>I'm having an issue with Sahi Open Source logging into Mailtrap.io</p>
  
  <p>the script is quite simple:</p>
  
  <pre><code>_navigateTo("https://mailtrap.io/");
  _setValue(_textbox("email"), "emailHere");
  _setValue(_password("user_password"), "passHere");
  _click(_submit("Log in"));
  </code></pre>
  
  <p>however only first line of code executes.. as soon as I reach mailtrap.io then controller looses grip on html... In case I launch new browser from Sahi Dashboard and navigate to mailtrap.io, then Controller window is not coming up on Alt+doubleClick.. </p>
  
  <p>I added SSL cert. Anyone had this issue before? Anyone successfully using sahi with mailtrap?</p>
  
  <p>Cheers.</p>