title: Angular2 RC5 and Elvis Operator
body: <p>We get label texts via a web service (data is stored in cmsText) and we have used in RC4 the following construction with the so called Elvis-Operator:</p>
  
  <pre><code>&lt;label 
      for="birthyear" 
      [innerhtml]="( cmsText | async )?.page20YearOfBirth"&gt;
  &lt;/label&gt;
  </code></pre>
  
  <p>I does not work anymore with RC5. What should we change?</p>
  
  <p>p.s. <code>( cmsText | async )</code> without Elvis gives the full ouput of data (i.e. the data is here)</p>