title: 2 embed Vimeo videos iframe in the same page duplicate
body: <p>I have 2 side to side embed Vimeo videos in the same page using iframe.
  When the page is loaded I see the 2 movies fine.
  When I go to another back and then come back using the Back button of the browser the 2 movies duplicate!!! I see the same movie on both videos... if I refresh the page everything returns to be normal. Something in the Back bottom mess things up.
  I tried several embed codes, nothing changed.
  Please advise.</p>