Function safeClone

src/filesize.js:238–246

* Safely clone an object using structuredClone with JSON fallback. * structuredClone can throw for functions, circular refs, etc.

(value)

	 * structuredClone can throw for functions, circular refs, etc.
	 */
	function safeClone(value) {
		try {
			return typeof structuredClone === "function"
				? structuredClone(value)
				: JSON.parse(JSON.stringify(value));
		} catch {
			return JSON.parse(JSON.stringify(value));
		}
	}

	const cloned = {
		localeOptions: safeClone(localeOptions),