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Re: [whatwg] Sychronous operations in onclose handlers

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Wed, 22 Aug 2012 09:42:35 -0700
Message-ID: <CAAWBYDAYuHdZCk7BbJ8EtRbKOTk9J44uQyq817g12wVQ8a4Kjw@mail.gmail.com>
To: Mark Watson <watsonm@netflix.com>
Cc: whatwg Group <whatwg@lists.whatwg.org>
On Wed, Aug 22, 2012 at 8:50 AM, Mark Watson <watsonm@netflix.com> wrote:
> Hi everyone,
> I heard that there was some discussion of banning the use of synchronous operations within document onclose handlers.
> Whilst it is obviously bad to hold up the closing of a document - especially indefinitely - I wondered what the solution was for applications that need to perform some final communication with an application server - say using XHR - when the document is closed ? Is it possible that events could continue to be handled for some short time after the onclose completes ? Something else ?
> I understand that there are cases where this is not possible - such as sudden loss of power - but that does't mean it isn't useful to be able to perform such operations in the normal, common, case.

I worked through a proposal for this exact problem a few months ago:

Hixie hasn't burned through enough of his backlog to work on it yet,
but if you have further comments, perhaps you could add them to that

Received on Wednesday, 22 August 2012 16:43:25 UTC

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