1 files changed, 58 insertions, 0 deletions
diff --git a/toolkit/components/remotebrowserutils/tests/browser/coop_header.sjs b/toolkit/components/remotebrowserutils/tests/browser/coop_header.sjs
new file mode 100644
index 0000000000..c6b537d770
--- /dev/null
+++ b/toolkit/components/remotebrowserutils/tests/browser/coop_header.sjs
@@ -0,0 +1,58 @@
+function handleRequest(request, response) {
+  Cu.importGlobalProperties(["URLSearchParams"]);
+  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 +=
+        '<a href="https://example.com/browser/toolkit/components/remotebrowserutils/tests/browser/coop_header.sjs?downloadFile&' +
+        (coop === "no-coop" ? "" : coop) +
+        '" id="' +
+        coop +
+        '" download>' +
+        unescape(coop) +
+        "</a> <br>";
+    });
+  }
+
+  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(
+      "<!DOCTYPE html><html><body><p>Hello world</p> " +
+        downloadHTML +
+        "</body></html>"
+    );
+  }
+}