you're probably thinking about this (which now 404s): http://cryptogasm.com/webcams/ http://cryptogasm.com/webcams/ Don't know why it was taken down. Here is t

you're probably thinking about this (which now 404s): http://cryptogasm.com/webcams/ http://cryptogasm.com/webcams/ Don't know why it was taken down. Here is the old thread : https://news.ycombinator.com/item?id=5543465 https://news.ycombinator.com/item?id=5543465 which mentions the Content-Type "multipart/x-mixed-replace" technique used to constantly update jpegs in the browser.