hijack.js

Promise.prototype.resolve = function() {
  let loader = new Reflect.Loader();
  let self = this;
  loader[Reflect.Loader.resolve] = () => "whatevs";
  loader[Reflect.Loader.fetch] = function(whatevs) {
    return self;
  };
  return function(v) {
    loader.load("whatevs"); // causes the loader to block on this promise for @@fetch
    loader.provide(v);      // causes the loader to resolve this promise
  }
};