Characters allowed in between @import
<style>
@import$[chr]'//91e7358bc4c4.ngrok-free.app/test.css'
</style>
<div id=x>test</div>
window.getComputedStyle(x).color === 'rgb(255, 0, 0)' && log($[i])Chrome 151.0.7922.110 ran this vector and matched nothing.
Firefox 153.0 ran this vector and matched nothing.
Microsoft Edge 150.0.4078.105 ran this vector and matched nothing.
Safari 26.3.1 could not complete this vector.
Microsoft Edge 150.0.4078.83 could not complete this vector.
Safari 26.2 ran this vector and matched nothing.