Clear all cookies in all paths and all variants of the domain (www.mydomain.example, mydomain.example, etc...)

clearCookies.js

function clearCookies() {
/* Clear all cookies in all paths and all variants of the domain (www.mydomain.example, mydomain.example, etc...) */
const cookies = document.cookie.split("; ");
for (let cookie of cookies) {
  const domains = window.location.hostname.split(".");
  while (domains.length > 0) {
    // prettier-ignore
    const cookieName = encodeURIComponent(cookie.split(";")[0].split("=")[0]);
    const cookieBase = `${cookieName}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; domain=${domains.join(".")} ;path=`; // prettier-ignore

    const paths = location.pathname.split("/");
    document.cookie = cookieBase + "/";
    while (paths.length > 0) {
      document.cookie = cookieBase + paths.join("/");
      paths.pop();
    }
    domains.shift();
  }
}
/* Thanks to https://stackoverflow.com/a/33366171/1977459 */

Thanks to https://stackoverflow.com/a/33366171/1977459