Name: Want to configure when to "break into debugger" or "take core dump" on rejections easily.
Franchesca is trying to debug an issue in a Node.js application where a promise rejects somewhere and causes an unhandledRejection. This is a unique state in Franchesca's app and she would like to detect it by taking a core dump when promises reject.
The unhandledRejection hook only emits after a microtick has passed so it is impossible to detect it.
Because otherwise we would detect false positive unhandled rejections way mor often.
Node.js could expose an async_hook for when a promise rejects optionally.