• Version: v13.0.0-pre
• Platform:Mac
• Subsystem:

I try to finish the feature Add TextEncoder.prototype.encodeInto , after finish the feature , i test with command
python tools/test.py wpt/test-encoding

I meet the failure as followed

[FAILURE] encodeInto() and a detached output buffer
MessageChannel is not defined
ReferenceError: MessageChannel is not defined
at Test. (node/test/fixtures/wpt/encoding/encodeInto.any.js:142:3)

encodeInto.any.js

142   new MessageChannel().port1.postMessage(buffer, [buffer]);
143   ({ read, written } = new TextEncoder().encodeInto("", view));