[whatwg] AppCache and SharedWorkers?

Alexey Proskuryakov ap at webkit.org
Thu Mar 26 03:58:56 PDT 2009

On 26.03.2009, at 1:01, Drew Wilson wrote:

> * Shared (or persistent) worker contexts should be associated with  
> an appcache according to the same resource loading and cache  
> selection logic used for top-level browsing contexts. (So just like  
> navigating a window.)
> That may make sense for Shared workers, I think. For persistent  
> workers I think this is a problem - persistent workers need a way to  
> manage their own app cache, since they are not guaranteed to have  
> any open windows/documents associated with them. My concern about  
> this is that app cache manifests are only specified via <manifest>  
> html tags, which makes them only applicable to HTML documents (you  
> can't associate a manifest with a worker since there's no document  
> to put the manifest tag in).

Letting faceless background processes update themselves without user  
consent is not necessarily desirable. I think that they need browser  
UI for this, and/or associated HTML configuration pages that could  
(among other duties) trigger application cache update.

So in my opinion, this is pretty much a sub-task of defining what UI  
is necessary for persistent workers in the browser, not a question of  
exposing application cache APIs to them.

- WBR, Alexey Proskuryakov

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