EDIT: Found it in my IRC logs of all places.

<a href="http://developer.mozilla.org/presentations/eich-ajax-experience-2007/photos.svg">AJAX stuff</a>. Looks like it's still broken, unfortunately, 'cause that is one of the best examples. It renders correctly in Firefox2, though, I believe.
EDIT2: Looks like <a href="http://people.mozilla.com/~vladimir/demos/photos.svg">Vladimir fixed it</a>, but didn't deploy the fixed script.
