As I understand it, that is one of the scenarios covered by the recently proposed Beacon API: http://www.w3.org/TR/beacon/
Sent from my Windows Phone ________________________________ From: Scott González Sent: 2/7/2014 9:33 AM To: Anne van Kesteren Cc: Jonas Sicking; Domenic Denicola; [email protected]; [email protected] Subject: Re: "Officially" deprecating main-thread synchronous XHR? What about developers who are sending requests as the page is unloading? My understanding is that sync requests are required. Is this not the case? On Friday, February 7, 2014, Anne van Kesteren <[email protected]<mailto:[email protected]>> wrote: On Fri, Feb 7, 2014 at 6:18 PM, Jonas Sicking <[email protected]> wrote: > Agreed. I think for this to be effective we need to get multiple browser > vendors being willing to add such a warning. We would also need to add text > to the various versions of the spec (whatwg and w3c). For what it's worth, was done when Olli brought this up in #whatwg: http://xhr.spec.whatwg.org/#sync-warning -- http://annevankesteren.nl/
