How to delete cookies on withdrawal? | CookieFirst Help Center

By default our script is not removing or deleting cookies when someone withdraws their consent. To be able to do this we wrote another helper script.

This currently only works for whole categories. Service based consent is not yet supported.

HTML

<!-- Remove cookies after withdrawal -->
<script>
(function () {
window.cf_delete_cookie =
window.cf_delete_cookie ||
function (cookie) {
var name = cookie.unmasked_name || cookie.name;
var path = cookie.path || "/";
var domain = cookie.host_key || "";
console.log("cookie for removal", { name });
document.cookie = `${name}= ; expires = Thu, 01 Jan 1970 00:00:00 GMT; path= ${path}; domain=${domain};`;
if (window.localStorage.getItem(name)) {
window.localStorage.removeItem(name);
}
if (window.sessionStorage.getItem(name)) {
window.sessionStorage.removeItem(name);
}
};

function remove_cookies(consent = {}) {
if (typeof consent !== "object") {
throw new Error("Uknnown error");
}

window.CookieFirst.fetchLatestScan()
.then(function (result) {
if (!result || !Array.isArray(result.cookies)) {
return;
}

result.cookies.forEach(function (cookie) {
<!-- category accepted or cookie is http_only -->
if (consent[cookie.cat] || cookie.http_only) {
return;
}

window.cf_delete_cookie(cookie);
});
})
.catch(console.log);
}

function handle_consent_event(e) {
var consent = e.detail || { necessary: true };
if (!window.CookieFirst) {
window.addEventListener("cf_init", function () {
remove_cookies(consent);
});
return;
}

remove_cookies(consent);
}

window.addEventListener("cf_consent", handle_consent_event);
window.addEventListener("cf_consent_loaded", handle_consent_event);
})();
</script>
<!-- End of helper script to remove cookies -->