title: Facebook App Canvas Showing Blank Page
body: <p>i am trying to create facebook app but the canvas page is showing <strong>blank</strong>. I am working with localhost.</p>
  
  <p><img src="https://i.stack.imgur.com/SBtM7.png" alt="enter image description here"></p>
  
  <p>In my htdocs folder i have basic php file with following content</p>
  
  <pre><code>&lt;html&gt;
      &lt;head&gt;
          &lt;title&gt;Fb App&lt;/title&gt;
      &lt;/head&gt;
      &lt;body&gt;
          &lt;h1&gt;Working....&lt;/h1&gt;
      &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>In the console window i am getting following error</p>
  
  <pre><code>**[blocked] The page at 'https://apps.facebook.com/fooobaaar/' was loaded over HTTPS, but ran insecure content from 'http://localhost/': this content should also be loaded over HTTPS.
   (index):37**
  
  **event.returnValue is deprecated. Please use the standard event.preventDefault() instead.**
  </code></pre>
  
  <p>I guess this means i need https. Do i really need https for testing on localhost</p>