Lighthouse can't find source map files even though I have added them just after the script themselves.
<script src="https://unpkg.com/swiper@6.5.0/swiper-bundle.js"></script>
<script src="https://unpkg.com/swiper@6.5.0/swiper-bundle.js.map"></script>
That's not how source maps work. You must append //# sourceMappingURL=swiper-bundle.js.map
at the end of the JS file.