title: Ember.js 1.10 - Failed to execute 'setAttribute' on 'Element': '"' is not a valid attribute name
body: <p>After upgrading from Ember.js 1.9 to 1.10 I got following error - </p>
  
  <p>Uncaught InvalidCharacterError: Failed to execute 'setAttribute' on 'Element': '"' is not a valid attribute name.</p>
  
  <pre><code>prototype.setAttribute = function(element, name, value) {
      element.setAttribute(name, String(value));
  };
  </code></pre>
  
  <p>Values are:</p>
  
  <pre><code>value: "" 
  name: """ 
  element: &lt;span&gt;&lt;/span&gt;
  </code></pre>
  
  <p>What is easiest way to find what issue might be with the upgrade and what should be fixed? The error is not very user friendly.</p>