与Web Worker通信时保留对象身份

Question

将对象传递给Web Worker时，是否可以保留其身份？

// main.js
const w = new Worker('worker.js');

const data = {
  blah: 'blah'
};

// receiving from worker
w.onmessage = e => e.data === data; // <= THIS IS ALWAYS FALSE

// worker.js
onmessage = e => postMessage(e.data);