title: Google checkout integration with magento
body: <p>I'm trying to add Google Checkout to my magento 1.7.0.0 shop.  I've traced the issue and it seems to fail during posting to google's server because when I try to read the response it's false.</p>
  
  <p>The error I get is: <strong>Google Checkout: Invalid response from Google Checkout server</strong></p>
  
  <p>I'm using magento 1.7, google sandbox with sandbox credentials, verified bank account, unchecked digitally signed carts, but am using a self-signed certificate on my development machine, and API version 2.2.</p>
  
  <p>The issue is happening in app/code/core/Mage/GoogleCheckout/Model/Api/Xml/Abstract.php on lines 174, 175</p>
  
  <pre><code>$http = new Varien_Http_Adapter_Curl();
  $http-&gt;write('POST', $url, '1.1', $headers, $xml);
  $response = $http-&gt;read();
  </code></pre>