title: Couldn't find iframe on test case
body: <p>I have this test case: </p>
  
  <pre><code>Select Frame    id=coach_frame63454108.cf1
  Wait Until Element Is Visible       ${ap.gui.header.appname}
  Page Should Contain Element         ${ap.gui.header.appname}
  Page Should Contain Element         ${ap.gui.header.appnum}
  Page Should Contain Element         ${ap.gui.header.procnum}
  </code></pre>
  
  <p>But always have the following error:</p>
  
  <pre><code>Element with locator 'coach_frame63454108.cf1' not found.
  </code></pre>
  
  <p>The iframe HTML code is:</p>
  
  <pre><code>&lt;iframe id="coach_frame63454108.cf1" style="border: 0px; height: 100%; width: 100%; display: block" title="Verify Application"&gt;&lt;/iframe&gt;  
  </code></pre>
  
  <p>Could anybody help me please.</p>