title: handling iframe with capybara ruby
body: <p>Below is the html code ..</p>
  
  <pre><code>&lt;iframe id="I0_1366100881331" frameborder="0" width="100%"&gt;
  &lt;div class="ZRa"&gt;
  &lt;span id="button" class="hAa Qo Bg" tabindex="0" role="button" title="" aria-      label="Click here to publicly +1 this." aria-pressed="false"&gt;
  &lt;/div&gt;
  &lt;/iframe&gt;    
  </code></pre>
  
  <p>In the above scenario, I want to switch into the IFRAME (iframe id="I0_1366100881331") to perform some actions on the SPAN present in that IFRAME. I have tried with most of the cases but no result :(... any one please help.</p>
  
  <p>I want the solution for cucumber using capybara ruby only..</p>
  
  <p>Note: I tried with following code but no result.</p>
  
  <p>page.driver.browser.switch_to.frame "I0_1366100881331"</p>