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// small red image
const IMAGE = atob(
"iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
"P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
);
function handleRequest(aRequest, aResponse) {
aResponse.setStatusLine(aRequest.httpVersion, 200);
if (aRequest.queryString.includes("result")) {
aResponse.write(getState("hints") || 0);
setState("hints", "0");
} else {
let hints = parseInt(getState("hints") || 0) + 1;
setState("hints", hints.toString());
aResponse.setHeader("Content-Type", "image/png", false);
aResponse.write(IMAGE);
}
}