mozilla-central/dom/security/test/general/file_same_site_cookies_cross_origin_context.sjs

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// Custom *.sjs file specifically for the needs of Bug 1452496
// small red image
const IMG_BYTES = atob(
"iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
"P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
);
const FRAME = `
<!DOCTYPE html>
<html>
<head>
<title>Bug 1452496 - Do not allow same-site cookies in cross site context</title>
</head>
<body>
<script type="application/javascript">
let cookie = document.cookie;
// now reset the cookie for the next test
document.cookie = "myKey=; SameSite=None; Partitioned; Secure; expires=Thu, 01 Jan 1970 00:00:00 GMT";
window.parent.postMessage({result: cookie}, 'http://mochi.test:8888');
</script>
</body>
</html>`;
function handleRequest(request, response) {
// avoid confusing cache behaviors
response.setHeader("Cache-Control", "no-cache", false);
if (request.queryString.includes("setSameSiteCookie")) {
response.setHeader(
"Set-Cookie",
"myKey=strictSameSiteCookie; SameSite=Strict; Partitioned; Secure",
true
);
response.setHeader("Content-Type", "image/png");
response.write(IMG_BYTES);
return;
}
if (request.queryString.includes("setRegularCookie")) {
response.setHeader(
"Set-Cookie",
"myKey=regularCookie; SameSite=None; Partitioned; Secure",
true
);
response.setHeader("Content-Type", "image/png");
response.write(IMG_BYTES);
return;
}
if (request.queryString.includes("loadFrame")) {
response.write(FRAME);
return;
}
// we should never get here, but just in case return something unexpected
response.write("D'oh");
}