What is the issue with the HTML Standard?

I am not sure this is the place to discuss such feature request but basically Workers and importmap don't cope well with each other.

The idea here is that, given a single <script type="importmap"> and its JSON context, such JSON context can be forwarded to either Worker or SharedWorker constructors through their initialization options parameter.

const w = new Worker('./worker.js', { type: 'module', importmap: { ...that_one } })

As long story short, it's unfortunate only the main thread can benefit from importmap but there's no way to propagate that map elsewhere, or create ad-hoc importmap for detached threads so I hope this issue/feature-request will be somehow addressed sooner than later, also because polyfills around this issue look ugly and full of 3rd party dependencies that do a bit too much to make bare imports work in environments where static import is allowed, but no way to dictate how that works, is available as API.

Thanks