Description

Hi!

A user requested to be able to avoid using a CDN for the importmap_polyfill. This is configurable via framework.asset_mapper.importmap_polyfill. However, that path is not processed through AssetMapper, which is a bit awkward: you need to put it directly into your public directory.

Overall, it'd be nice to provide an easier path to using a local importmap polyfill.

Cheers!

Example

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