[webkit-dev] beforeload & link (esp rel prefetch)

Alexey Proskuryakov ap at webkit.org
Thu Jan 13 12:08:05 PST 2011

13.01.2011, в 11:34, Robert Hogan написал(а):

>> As a specific example discussed in this thread, we'd
>> break some browser extensions like Incognito if resource loading could
>> bypass onbeforeload. 
> Could you elaborate on this a bit? I don't understand the potential 
> breakage.

Privacy enhancing extensions such as this one block access to cross-domain subresources from sites known for pervasive user tracking. If some subresources avoid beforeload, they won't be blocked, and users will be tracked. I would expect that whatever an extension or a Web site wants to do with beforeload, it trusts that there is no bypass such as the Link header.

Obviously, nothing will change in practice until sites actually start using the Link header. But widespread use of Link is something we should plan for if we're going to support it.

- WBR, Alexey Proskuryakov

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