Microsoft Edge: Retirement of default unload event support

Microsoft Edge is retiring the default support for the unload event in the web platform as part of ongoing changes, which may affect websites or applications using unload event handlers. Developers should review their code to ensure compatibility with the new behavior.

“Services: Microsoft 365 suite. If your websites or applications do not use unload event handlers (unload), the impact described below does not apply and no action is required.[What and why]Microsoft Edge is changing the default behavior of the web platform unload event as part of the on…”

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Audience

developer

Environment

cloud

Classification confidence: 95%

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