PUBLIC MARKS with tags http & html5

Règles de développement de Google : HTML, CSS, Javascript, C...

If the user agent can seek to anywhere in the media resource, e.g. because it is a simple movie file and the user agent and the server support HTTP Range requests, then the attribute would return an object with one range, whose start is the time of the first frame (the earliest possible position, typically zero), and whose end is the same as the time of the first frame plus the duration attribute's value (which would equal the time of the last frame, and might be positive Infinity).

The noreferrer link relation is one of many link relations defined in the HTML5 spec, and the first to be implemented in WebKit.  We hope it will make life a little easier for web developers who have concerns about user privacy and security.