windows: Exceptions from asynchronous functions are not thrown correctly

[ahaoboy]

Only synchronous exceptions are caught and displayed.
The following code fails to execute without any error message

async function main() {
  throw new Error()
}

main()

[richarddavison]

This is currently a limitation in the QuickJS engine. We are able to capture unhandled promise rejections but that doesn't align with how it's handled in Node.js. We'll be working on a patch for this.

[georeeve]

This also seems to be affecting how API Gateway authorizer lambdas return 401s. For example, in a Node.js lambda if you use throw new Error('Unauthorized'), this will return a 401 to the client, but doing the same in an LLRT lambda returns a 500.