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LibWeb: Reserve zero for not supported transfer type

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Previously we were using 0 for both unsupported type and MessagePort,
which led to crashing on attempt to decode unsupported transfer type as
MessagePort.

Fixes crashing on
https://docs.mapbox.com/mapbox-gl-js/clip-layer-building-demo.html
This commit is contained in:
Aliaksandr Kalenik
2025-04-13 19:50:49 +02:00
committed by Alexander Kalenik
parent e18e7d6019
commit ea8a6b43f7
Notes: github-actions[bot] 2025-04-14 15:02:44 +00:00 
Author: https://github.com/kalenikaliaksandr
Commit: https://github.com/LadybirdBrowser/ladybird/commit/ea8a6b43f7b
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/4342
Reviewed-by: https://github.com/trflynn89
3 changed files with 10 additions and 5 deletions
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7
Libraries/LibWeb/HTML/StructuredSerialize.h
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@@ -45,9 +45,10 @@ struct DeserializedRecord {
};
enum class TransferType : u8 {
MessagePort,
ArrayBuffer,
ResizableArrayBuffer,
Unknown = 0,
MessagePort = 1,
ArrayBuffer = 2,
ResizableArrayBuffer = 3,
};
WebIDL::ExceptionOr<SerializationRecord> structured_serialize(JS::VM& vm, JS::Value);