I've tried this before, with a service worker[1] that intercepts TS/X-ish requests, and directing them over to sucrase[2] to compile to JS, before being loaded

I've tried this before, with a service worker[1] that intercepts TS/X-ish requests, and directing them over to sucrase[2] to compile to JS, before being loaded by the browser. Unfortunately sucrase seems to be no longer maintained. [1]: https://github.com/altbdoor/sucrase-build-iife https://github.com/altbdoor/sucrase-build-iife [2]: https://github.com/alangpierce/sucrase https://github.com/alangpierce/sucrase