Coroutines doesn't support immediate cancellation

[glureau]

    const abortController = new AbortController();
    const { signal: abortSignal } = abortController;
    var promise = longCompute(abortSignal); // Get a Promise from Kotlin
    abortController.abort(); // Won't work
    
    // Workaround: await just a bit so the promise Kotlin is actually created and listen the `onabort`
    await new Promise((resolve) => {
      setTimeout(resolve, 0);
    });
    abortController.abort(); // Works

The first call to abort() should work.

[glureau]

Fixed by c7a4ddc (impacting v0.4.1 and previous)