Can you store a JS object in a SharedArrayBuffer?

I need to share an object between a client side application and a web worker and I heard about SharedArrayBuffers. This is what I'd like to do.

main.js

let myWorker = new Worker('/worker.js')
let mySab = new SharedArrayBuffer(1024)
let myObj = { foo: 'bar', bar: 'foo' }
// Save 'myObj' to 'mySab'
worker.postMessage(sab)

worker.js

self.onmessage = (e) => {
    let myObj = BLANK // Get 'myObj' from SharedArrayBuffer
}

Is this possible? The examples I've seen of ShareArrayBuffers only ever save numbers in the buffer. Any help is appreciated!