[Webkit-unassigned] [Bug 220038] Unable to postMessage a WebAssembly module to a worklet

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220038

--- Comment #20 from Chris Dumez <cdumez at apple.com> ---
Comment on attachment 418682
  --> https://bugs.webkit.org/attachment.cgi?id=418682
WIP Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=418682&action=review

>> LayoutTests/imported/w3c/web-platform-tests/wasm/serialization/module/window-messagechannel-success-expected.txt:2
>> +PASS postMessaging to a dedicated worker via MessageChannel allows them to instantiate
> 
> Can we have a test case that is posting wasm module to message-ports tied to the different process and getting an error in deserialization side?
> Ideally, we should throw an error, and we should report onmessageerror since we failed deserialization.
> Maybe, we should add a test for checking that error, and after that, we should file a bug for `onmessageerror` handler invocation and implement it.
> https://developer.mozilla.org/en-US/docs/Web/API/Worker/onmessageerror
> https://developer.mozilla.org/en-US/docs/Web/API/MessagePort/onmessageerror

WebKit currently doesn't support onmessageerror AFAIK

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