Problem with 2 way communication to & from iframe about comlink

[surma]

Ah, you can’t re-use the same postMessage channel for multiple expose() calls. It’s been “used up” already. Maybe that’s something I should change. I’ll think about it.

For now, I’d recommend just defining a function where you pass the parentApi object as a parameter and wrap it in proxyValue(). I whipped up a Glitch (demo, code) using your code as a starting point.

Let me know if that helps :)

[ssured]

Thanks @surma. It totally helps 👍 Dunno but for me 2 way communication is essential to talk to a remote webpage and back. Your code exposes a really nice way to set this up between browsers. Maybe nice to add to the README?
I did not test yet in a 'real' scenario yet though, as I was hitting cross-origin issues when talking from our company page to a github.io hosted static PWA.

Thanks for your help!