How do I cache bust imported modules in es6?

Question

ES6 modules allows us to create a single point of entry like so:

Answer 1

A solution that crossed my mind but I wont use because I don't like it LOL is

window.version = `1.0.0`;

let { default: fu } = await import( `./bar.js?v=${ window.version }` );

Using the import "method" allows you to pass in a template literal string. I also added it to window so that it can be easily accessible no matter how deep I'm importing js files. The reason I don't like it though is I have to use "await" which means it has to be wrapped in an async method.