Hey, so we're doing something similar to the solution given above, but without compiling the worker at bundle time.
Basically what we're doing is putting the worker code in a string. When you need the worker, you can `import myWorker from ./worker`. At runtime you can create a `Blob` from the string, then create a URL for it using `window.URL.createObjectURL`.
It's certainly far from ideal. Since the code lives in a string, there are no compile time errors at all (though you could probably develop without the string form and put it in a string after). But it kinda works. Hope it's what you're looking for.