saudade/polyfills.js

import cssBlankPseudoInit from 'css-blank-pseudo/browser'
import focusWithinInit from 'postcss-focus-within/browser'
import cssHasPseudo from 'css-has-pseudo/browser'
import prefersColorSchemeInit from 'css-prefers-color-scheme/browser'

(async () => {
    cssBlankPseudoInit()
    focusWithinInit()
    cssHasPseudo()
    prefersColorSchemeInit()

    const focusVisible = document.createElement('script')
    focusVisible.src = '/node_modules/focus-visible/dist/focus-visible.min.js'
    document.body.append(focusVisible)
})()