Flickr recently started previewing their new photo pages. They’re quite nice but it does something that’s been driving me mad and I can’t work out how it’s doing it. It only happens in Google Chrome 5 and I’ve only seen it in a few places.
Take a look at this screen capture of Flickr’s new lightbox view. Note how the URL updates each time I click through to a new view. Nothing surprising there until you realise it’s not doing a full refresh of the page and is actually an Ajax call back to the server. (You may want to hit the full screen button, bottom right.)
Contrast that with what happens in Firefox – it’s still doing Ajax calls to make flicking between photos quick but the URL changes after the fragment
Update: also works in Safari, thanks Ross.