Method getParentURL

tools/mcpack.js:623–631

(href)

// URL

	getParentURL(href) {
		const url = new URL(href);
		let path = url.pathname;
		if (path) {
			let slash = path.lastIndexOf('/');
			url.pathname = path.slice(0, slash);
			return url.toString();
		}
	}
	isPathInvalid(path, index) {
		let split = path.split('/');
		if (index > 0)