Function validateAndExtractHost

script.js:402–411

(input)

}

function validateAndExtractHost(input) {
    try {
        const url = new URL(input);
        if (url.protocol !== "http:" && url.protocol !== "https:") throw new Error();
        return url.hostname;
    } catch {
        const hostnameRegex = /^(?!-)[A-Za-z0-9-]{1,63}(?<!-)(\.[A-Za-z]{2,})+$/;
        return hostnameRegex.test(input) ? input : null;
    }
}

$('addHostname').addEventListener('click', () => {
    const input = $('newWebsite');