Function escapeStringExternals

src/index.js:401–402

	const useWorkerLoader = options.workers !== false;

	const escapeStringExternals = ext =>
		ext instanceof RegExp ? ext.source : escapeStringRegexp(ext);
	const externalPredicate = new RegExp(
		`^(${external.map(escapeStringExternals).join('|')})($|/)`,
	);