Web Worker support for Dojo 2 Applications

[maier49]

Dojo 2 Applications should support the use of Web Workers where they are available with some sort of fallback to ensure the application is still isomorphic.

The worker-loader allow with a call to require(worker-loader?....), but we want to avoid inline usage of loaders.

Kit:

Also, if we do go with an approach like this, we should still find a better way to integrate it. We can type plugins now with something like:

declare module 'worker-loader?*' {
  export = /* ... */
}

Would we not be able to create something that wrapped ES import() that we could also inject some feature detection, so the code was isomorphic on Node.js as well?

[agubler]

Do you think that we could use worker-loader but not inline? and perhaps introduce a convention for web workers, maybe *.worker.ts and/or allow consumers to register specific worker files via the .dojorc?

module: {
	rules: [
		{
			test: /\worker.ts$/,
			loader: 'worker-loader'
		}
	]
}