This library, and therefore got, can't be used in a program that uses Bluebird promises globally. This is because PCancelable amends its prototype tree to make it a subclass of Promise but never calls the base Promise constructor, making it a false subclass.

The following code demonstrates this:

import Bluebird from 'bluebird';
global.Promise = Bluebird;

import pcancelable from 'p-cancelable';

async function run() {
  return await new pcancelable((resolve, reject) => {
    resolve(true);
  });
}

run().then(_ => console.log(_));

The code produces no output. It should print true.