wanderview: so while reviewing https://github.com/mdn/content/pull/13137 and testing URLPattern.test(), I notice this:

const pattern = new URLPattern({ hostname: '{*.}?example.com' });
console.log(pattern.test('custom-protocol://example.com/other/path?q=1'));
// false

…which makes sense because per the URL spec, non-special schemes have no hostname (right?)

(new URL('custom-protocol://example.com/other/path?q=1')).hostname
// ''

But then in testing the URLPattern() constructor, I notice this:

(new URLPattern('custom-protocol://example.com/other/path?q=1')).hostname
// 'example.com'

…which seems like either a bug in Chrome or a spec bug?