Whether an input names something on a server rather than on this disk.

http and https only. A file:// URL is a path spelled the long way and has no business going through a fetch, and no other scheme has a body to bundle.

import { isRemoteInput } from './remote-inputs.ts';

isRemoteInput('https://example.com/tests/cart-test.js'); // true
isRemoteInput('test/cart-test.ts'); // false
isRemoteInput('file:///tmp/a.ts'); // false — that is a path, and fs can read it