void handleAppleCaptivePortal() {
String Page = F("<HTML><HEAD><TITLE>Success</TITLE></HEAD><BODY>Success</BODY></HTML>");
webServer.sendHeader("Cache-Control", "no-cache, no-store, must-revalidate");
webServer.sendHeader("Pragma", "no-cache");
webServer.sendHeader("Expires", "-1");
webServer.send(200, "text/html", Page);
return;
}