[whatwg] Active workers when user leaves the page

Ian Hickson ian at hixie.ch
Fri Aug 8 12:30:17 PDT 2008

On Fri, 8 Aug 2008, Jonas Sicking wrote:
> This is something that have been in the back of my brain for a few days: 
> How do we deal with the user navigating a way from a page if there's a 
> Worker in the middle of some very long running script?

Right now the spec says that closing becomes true, and if the worker 
doesn't clean up promptly, the "kill a worker" algorithm is invoked and 
the script is killed, the unload handler is handled, and the script is 
killed again if that doesn't end prompty either.

> Also note that the the presence, or lack of, fastback cache doesn't 
> really make a difference. Pages are eventually going to get purged from 
> the fastback cache, so it just pushes the problem to a point a little 
> later in time.

Yup, the spec deals with this already too.

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'

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