Vimeo/YouTube Embeds Not Showing up in Preview

Hi, I’ve been having a problem with being able to view previews of Vimeo & YouTube embeds on my self hosted wordpress blog at https://www.directorsnotes.com.

I always write posts in html mode so if I have the following for example:

The Vimeo embed

<iframe src=”https://player.vimeo.com/video/27127177?portrait=0&color=009900&#8243; width=”750″ height=”422″ frameborder=”0″></iframe><p>Mac ‘n’ Cheese from Mac 'N' Cheese on Vimeo.</p>

and an unrelated YouTube video

<iframe width=”560″ height=”349″ src=”https://www.youtube.com/embed/8B5GP0AiQMc&#8221; frameborder=”0″ allowfullscreen></iframe>

On preview it displays as: https://skitch.com/marbelle/fxj4n/no-embeds

however once the post is published or if I navigate using the ‘Post draft updated. Preview post’ link the videos display correctly. This is an issue in both Google Chrome 13.0.782.112 and Safari 5.1 – I’m not sure which WordPress update broke it, but previews used to work fine.

Thanks
MarBelle