64217 – Microsoft Edge v.83: Disallow synchronous XmlHttpRequest in page dismissal

Microsoft Edge

check before: 2020-05-14

Product:

Microsoft Edge

Scope:

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Platform:

Developer, Online, Windows Desktop, World tenant, mobile

Links:

Details:

Sending of synchronous XmlHttpRequests during unload of a webpage will be blocked. This change improves browser performance and reliability, but may impact web applications that have not yet been updated to use more modern web APIs, including sendBeacon and fetch. The Group Policy to disable this change and permit synchronous XHR during page dismissal will be available until Microsoft Edge 88.

Change Category:
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Status:
Launched

Ring:
Stable Channel

Created:
2020-05-20

updated:
2020-07-28

Change type:

task type:

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