function handleRequest(request, response) {
if (request.queryString == "reset") {
setState("index", "0");
response.setStatusLine(request.httpVersion, 200, "Ok");
response.write("Reset");
return;
}
let refresh = "";
let index = Number(getState("index"));
// index == 0 First load, returns first meta refresh
// index == 1 Second load, caused by first meta refresh, returns second meta refresh
// index == 2 Third load, caused by second meta refresh, doesn't return a meta refresh
let query = new URLSearchParams(request.queryString);
if (index < 2) {
refresh = query.get("seconds");
if (query.get("crossOrigin") == "true") {
const hosts = ["example.org", "example.com"];
let url = `${request.scheme}://${hosts[index]}${request.path}?${request.queryString}`;
refresh += `; url=${url}`;
}
refresh = ``;
}
// We want to scroll for the first load, and check that the meta refreshes keep the same
// scroll position.
let scroll = index == 0 ? `scrollTo(0, ${query.get("scrollTo")});` : "";
setState("index", String(index + 1));
response.write(
`
${refresh}