title: Magento 1 - Error messages aren't displaying on checkout
body: <p>If I drill into the developer toolbar > network, I see there is a /saveAll XHR request which for example has this message inside:</p>
  
  <pre><code>billing:
    {error: -1,…}
     error: -1
     message:
     "Email" is not a valid hostname., 'a.cpm' appears to be a DNS 
      hostname but cannot match TLD against known list, 'a.cpm' 
      appears to be a local network name but local network names are not allowed
  </code></pre>
  
  <p>But there is no error message/ alert being displayed on the front end so the user will have no idea what is wrong. Does anyone know what piece of code usually handles these and displays them on the front end so I can see if they have been removed?</p>
  
  <p>I can see where these error messages are originally coming from: </p>
  
  <pre><code>OnepageCheckout/controllers/OnepageController.php
  </code></pre>
  
  <p>Any help would be appreciated!</p>