title: Has Youtube Iframe Embed has stopped working for certain videos?
body: <p>I created a JS fiddle for this here: </p>
  
  <p><a href="http://jsfiddle.net/lindseymysse/6C65Y/1/" rel="nofollow">http://jsfiddle.net/lindseymysse/6C65Y/1/</a></p>
  
  <p>The error:</p>
  
  <p>Starting Yesterday evening, a few videos on the site I'm working on stopped loading for users. We are using the iframe embed, and attempting to do as much stuff with html5 as possible. </p>
  
  <p>To reproduce this error:</p>
  
  <p>If user is either </p>
  
  <ol>
  <li><p>Unenrolled/has not made a decision to turn html5 video on or  </p></li>
  <li><p>User has turned html5 trial on,  the video will not play on MacBook
  Chrome, Firefox or Safari.     </p></li>
  </ol>
  
  <p>If user either turns html5 trial on and then off, or (if they are already signed up for the html5 trial) just off, the embed will work</p>
  
  <p>Some Clues:</p>
  
  <p>The debug from a broken video looks like this: </p>
  
  <ul>
  <li>debug playbackQuality=small</li>
  <li>scoville=1</li>
  <li>cfps=0</li>
  <li>pd=0</li>
  <li>mos=0</li>
  <li>debug flashVersion=MAC 11%2C2%2C202%2C235</li>
  <li>fs=0</li>
  <li>hl=en US</li>
  <li>debug date=Thu May 10 14%3A40%3A14 GMT%2D0700 2012</li>
  <li>iframe=1</li>
  <li>lact=null</li>
  <li>videoFps=0</li>
  <li>vq=auto</li>
  <li>h=355</li>
  <li>stageFps=24</li>
  <li><strong>debug error=Not specified</strong></li>
  <li>tpmt=0</li>
  <li>framer=http%253A%252F%252Ffiddle%2Ejshell%2Enet%252FunPrz%252F5%252Fshow%252F</li>
  <li>volume=100</li>
  <li>droppedFrames=0</li>
  <li>w=473</li>
  <li>el=detailpage</li>
  <li>screenw=1440</li>
  <li>screenh=900</li>
  <li>debug videoId=</li>
  <li>playerw=640</li>
  <li>debug sourceData=</li>
  </ul>
  
  <p><strong>Some More:</strong></p>
  
  <ul>
  <li>Mozilla gives the error: -- Unexpected value align parsing preserveAspectRatio attribute.</li>
  <li>The videos we have found that this embed is broken on are ones that play as Flash videos even in the html5 trial. </li>
  </ul>
  
  <p>Please see my jsFiddle to reproduce the error. </p>
  
  <p>What is causing this? This error is not throwing an error in the youtube api onError call, is there a way to spot it so we can deal with this? </p>