Dynamically importing Javascript from URL or String and manipulating the module

[ten3roberts]

Summary

Is it possible to import a ES module from a url or other downloaded text and import it through wasm.

Ideally, this will return an Object like import does, upon which you can dynamically reflect and call the exports or default export.

Additional Details

The wasm file has no prior data on the javascript file, and can as such not be used with the #[wasm_bindgen(module = )] macro, as that requires the JS file to be known at compile time and will become globally available.

I would need a dynamic local object that is returned where and when it is needed

[daxpedda]

You could do it with inline_js of course, but not otherwise, see #2865.
(this was broken by #2855)