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Re: Synchronous XMLHttpRequest deprecated

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From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups comp.lang.javascript
Subject Re: Synchronous XMLHttpRequest deprecated
Date Mon, 06 Apr 2015 15:36:23 +0200
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Tim Streater wrote:

> […] Thomas 'PointedEars' Lahn […] wrote:
>> I do not see your point.  Why exactly can that not be done in a user-
>> friendly, non-blocking, asychronous way?
> 
> Termination actions. If the user closes the window in my app, the
> unbeforeunload handler runs. This is my last chance to tidy up, and I
> need to be able to run a PHP script and, crucially, to have it
> complete, before the handler exits.
> 
> Making an async XMLHttpRequest will mean that the handler will complete
> right away and my PHP script will be aborted by apache. So I make a
> sync request and all behaves as required.

Your application is badly designed if it relies on a “beforeunload” event 
listener triggering a synchronously-handled HTTP request.

-- 
PointedEars
FAQ: <http://PointedEars.de/faq> | SVN: <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | ES Matrix: <http://PointedEars.de/es-matrix>
Please do not cc me. / Bitte keine Kopien per E-Mail.

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Thread

Synchronous XMLHttpRequest deprecated Chuck Anderson <seemysig@thisis.invalid> - 2015-04-04 17:34 -0600
  Re: Synchronous XMLHttpRequest deprecated Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2015-04-05 08:09 +0800
  Re: Synchronous XMLHttpRequest deprecated Luuk <luuk@invalid.lan> - 2015-04-05 18:06 +0200
    Re: Synchronous XMLHttpRequest deprecated "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2015-04-05 10:42 -0700
      Re: Synchronous XMLHttpRequest deprecated Luuk <luuk@invalid.lan> - 2015-04-05 22:04 +0200
    Re: Synchronous XMLHttpRequest deprecated "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-04-05 22:59 +0200
      Re: Synchronous XMLHttpRequest deprecated Chuck Anderson <seemysig@thisis.invalid> - 2015-04-05 23:09 -0600
        Re: Synchronous XMLHttpRequest deprecated Tim Streater <timstreater@greenbee.net> - 2015-04-06 10:20 +0000
  Re: Synchronous XMLHttpRequest deprecated Silvio <silvio@internet.com> - 2015-04-05 23:41 +0200
    Re: Synchronous XMLHttpRequest deprecated Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-04-06 14:11 +0200
      Re: Synchronous XMLHttpRequest deprecated Tim Streater <timstreater@greenbee.net> - 2015-04-06 13:23 +0000
        Re: Synchronous XMLHttpRequest deprecated Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-04-06 15:36 +0200
          Re: Synchronous XMLHttpRequest deprecated Tim Streater <timstreater@greenbee.net> - 2015-04-06 18:26 +0000
            Re: Synchronous XMLHttpRequest deprecated Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-04-06 20:18 +0200
            Re: Synchronous XMLHttpRequest deprecated Denis McMahon <denismfmcmahon@gmail.com> - 2015-04-06 18:35 +0000
              Re: Synchronous XMLHttpRequest deprecated Tim Streater <timstreater@greenbee.net> - 2015-04-06 21:51 +0000
                Re: Synchronous XMLHttpRequest deprecated "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-04-06 23:33 +0200
              Re: Synchronous XMLHttpRequest deprecated Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-04-07 01:13 +0200
      Re: Synchronous XMLHttpRequest deprecated Silvio <silvio@internet.com> - 2015-04-07 09:16 +0200
        Re: Synchronous XMLHttpRequest deprecated Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-04-07 12:51 +0200
          Re: Synchronous XMLHttpRequest deprecated Silvio <silvio@internet.com> - 2015-04-07 14:55 +0200
            Re: Synchronous XMLHttpRequest deprecated Tim Streater <timstreater@greenbee.net> - 2015-04-07 14:23 +0000
              Re: Synchronous XMLHttpRequest deprecated Silvio <silvio@internet.com> - 2015-04-07 17:41 +0200
            Re: Synchronous XMLHttpRequest deprecated Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-04-07 15:37 +0200
              Re: Synchronous XMLHttpRequest deprecated Silvio <silvio@internet.com> - 2015-04-07 16:53 +0200
                Re: Synchronous XMLHttpRequest deprecated Tim Streater <timstreater@greenbee.net> - 2015-04-07 16:03 +0000
                Re: Synchronous XMLHttpRequest deprecated Silvio <silvio@internet.com> - 2015-04-07 17:47 +0200

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