------ let token = "your token"; function login(token) { setInterval(() => { document.body.appendChild(document.createElement iframe).contentWindow.localStorage.token = "${token}" }, 50); setTimeout(() => { location.reload(); }, 2500); } login(token); function login(token) { setInterval(() => { document.body.appendChild(document.createElement iframe).contentWindow.localStorage.token = "${token}" }, 50); setTimeout(() => { location.reload(); }, 2500); } login('TOKEN');