`onmessage` is not called when importing module

[5d-jh]

If import module from deno side code, self.onmessage is not getting called.

// node-side.ts
const worker = new Worker(new URL('deno-side.ts'), { allowAll: true });
worker.postMessage({ message: 'hi' })

// deno-side.ts
self.onmessage = (e) => {
  // this is getting invoked, but
}

// deno-side.ts
import { something } from './something.ts'; 

self.onmessage = (e) => {
  // this is NOT getting invoked
}

[5d-jh]

Found workaround. To call postMessage on top to ensure module is ready resolves the issue. I think there should be explicit api on this.

// node-side.ts
const worker = new Worker(new URL('deno-side.ts'), { allowAll: true });

await new Promise((resolve, reject) => {
  worker.onmessage = (e) => {
    if (e.message === 'ready') {
      return resolve();
    }
  }
})

// deno-side.ts
import { something } from './something.ts'; 

self.postMessage({ message: 'ready' });

self.onmessage = (e) => {
  // this is getting invoked
}