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function handleRequest(request, response) {
response.setHeader("Cache-Control", "no-cache, must-revalidate", false);
if (request.queryString === "verify") {
var preflightState = getState("preflight");
response.write(preflightState === "done" ? "green" : "red");
return;
}
var originHeader = request.getHeader("origin");
response.setHeader("Access-Control-Allow-Headers", "content-type", false);
response.setHeader("Access-Control-Allow-Methods", "POST, GET", false);
response.setHeader("Access-Control-Allow-Origin", originHeader, false);
response.setHeader("Access-Control-Allow-Credentials", "true", false);
if (request.queryString === "beacon") {
if (request.method == "OPTIONS") {
setState("preflight", "done");
response.setStatusLine(null, 200, "OK");
return;
}
response.setStatusLine(null, 200, "OK");
response.write("DONE");
return;
}
if (request.queryString === "fail") {
if (request.method == "OPTIONS") {
setState("preflight", "done");
response.setStatusLine(null, 400, "Bad Request");
return;
}
setState("preflight", "oops");
response.setStatusLine(null, 200, "OK");
response.write("DONE");
}
}