Re: [w3c/ServiceWorker] Client postmessage uses MessageEvent (Issue #1823)

yoshisatoyanagisawa left a comment (w3c/ServiceWorker#1823)

I assume that clients usually use `MessageEvent` for `postMessage()`. In what specific cases would a client (especially a `Window` client) need to extend its lifetime using the Extendable interface?

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Received on Tuesday, 26 May 2026 08:06:54 UTC