1 files changed, 31 insertions, 0 deletions
diff --git a/browser/components/sessionstore/test/coopHeaderCommon.sjs b/browser/components/sessionstore/test/coopHeaderCommon.sjs
new file mode 100644
index 0000000000..919228f550
--- /dev/null
+++ b/browser/components/sessionstore/test/coopHeaderCommon.sjs
@@ -0,0 +1,31 @@
+function handleRequest(request, response) {
+  Cu.importGlobalProperties(["URLSearchParams"]);
+  let { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
+  let query = new URLSearchParams(request.queryString);
+
+  response.setHeader("Cross-Origin-Opener-Policy", "same-origin", false);
+  response.setHeader("Cross-Origin-Embedder-Policy", "require-corp", false);
+
+  var fileRoot = query.get("fileRoot");
+
+  // Get the desired file
+  var file;
+  getObjectState("SERVER_ROOT", function(serverRoot) {
+    file = serverRoot.getFile(fileRoot);
+  });
+
+  // Set up the file streams to read in the file as UTF-8
+  let fstream = Cc["@mozilla.org/network/file-input-stream;1"].createInstance(
+    Ci.nsIFileInputStream
+  );
+
+  fstream.init(file, -1, 0, 0);
+
+  // Read the file
+  let available = fstream.available();
+  let data =
+    available > 0 ? NetUtil.readInputStreamToString(fstream, available) : "";
+  fstream.close();
+
+  response.write(data);
+}