Importing npm modules as browserified js files works from an absolute path but not from a relative path

[phoeinx]

`<script>

import mp from "./npm-modules/npm-mouse-position.js"
import mp2 from "https://lively-kernel.org/lively4/BP2019RH1/scratch/individualsAsPoints/regl/npm-modules/npm-mouse-position.js"

"mp:" + mp + " mp3: " + mp2
</script>`

Gives this result when evaluated on a folder with an npm-modules subfolder which holds the nom-mouse-position.js file which can be found at https://lively-kernel.org/lively4/BP2019RH1/scratch/individualsAsPoints/regl/npm-modules/npm-mouse-position.js.