function handleRequest(request, response) {
let query = new URLSearchParams(request.queryString);
response.setStatusLine(request.httpVersion, 200, "OK");
// The tests for Cross-Origin-Opener-Policy unfortunately depend on
// BFCacheInParent not kicking in, as with that enabled, it is not possible to
// tell whether the BrowsingContext switch was caused by the BFCache
// navigation or by the COOP mismatch. This header disables BFCache for the
// coop documents, and should avoid the issue.
response.setHeader("Cache-Control", "no-store", false);
let isDownloadPage = false;
let isDownloadFile = false;
query.forEach((value, name) => {
if (name === "downloadPage") {
isDownloadPage = true;
} else if (name === "downloadFile") {
isDownloadFile = true;
} else if (name == "coop") {
response.setHeader("Cross-Origin-Opener-Policy", unescape(value), false);
} else if (name == "coep") {
response.setHeader(
"Cross-Origin-Embedder-Policy",
unescape(value),
false
);
}
});
let downloadHTML = "";
if (isDownloadPage) {
["no-coop", "same-origin", "same-origin-allow-popups"].forEach(coop => {
downloadHTML +=
'' +
unescape(coop) +
"
";
});
}
if (isDownloadFile) {
response.setHeader("Content-Type", "application/octet-stream", false);
response.write("BINARY_DATA");
} else {
response.setHeader("Content-Type", "text/html; charset=utf-8", false);
response.write(
"Hello world
" +
downloadHTML +
""
);
}
}