Fix mobile version of is-url.

Changes on this PR: #19871 broke the native `is-url` version since it won't throw if the given string is not a url.

packages/url/src/is-url.native.js

@@ -0,0 +1,17 @@
+const URL_REGEXP = /^(?:(?:(?:https?|ftp):)?\/\/)(?:(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)(?:\.(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)*(?:\.(?:[a-z\u00a1-\uffff]{2,})))(?::\d{2,5})?(?:[/?#]\S*)?$/i;
+
+/**
+ * Determines whether the given string looks like a URL.
+ *
+ * @param {string} url The string to scrutinise.
+ *
+ * @example
+ * ```js
+ * const isURL = isURL( 'https://wordpress.org' ); // true
+ * ```
+ *
+ * @return {boolean} Whether or not it looks like a URL.
+ */
+export function isURL( url ) {
+	return URL_REGEXP.test( url );
+}