1 files changed, 54 insertions, 0 deletions
diff --git a/dom/security/test/csp/file_nonce_snapshot.sjs b/dom/security/test/csp/file_nonce_snapshot.sjs
new file mode 100644
index 0000000000..2b114fd87e
--- /dev/null
+++ b/dom/security/test/csp/file_nonce_snapshot.sjs
@@ -0,0 +1,54 @@
+"use strict";
+
+const TEST_FRAME = `<!DOCTYPE HTML>
+   <html>
+   <body>
+   <script id='myScript' nonce='123456789' type='application/javascript'></script>
+   <script nonce='123456789'>
+     let myScript = document.getElementById('myScript');
+     // 1) start loading the script using the nonce 123456789
+     myScript.src='file_nonce_snapshot.sjs?redir-script';
+     // 2) dynamically change the nonce, load should use initial nonce
+     myScript.setAttribute('nonce','987654321');
+   </script>
+   </body>
+   </html>`;
+
+const SCRIPT = "window.parent.postMessage('script-loaded', '*');";
+
+function handleRequest(request, response) {
+  // avoid confusing cache behaviors
+  response.setHeader("Cache-Control", "no-cache", false);
+
+  let queryString = request.queryString;
+
+  if (queryString === "load-frame") {
+    response.setHeader(
+      "Content-Security-Policy",
+      "script-src 'nonce-123456789'",
+      false
+    );
+    response.setHeader("Content-Type", "text/html", false);
+    response.write(TEST_FRAME);
+    return;
+  }
+
+  if (queryString === "redir-script") {
+    response.setStatusLine("1.1", 302, "Found");
+    response.setHeader(
+      "Location",
+      "file_nonce_snapshot.sjs?load-script",
+      false
+    );
+    return;
+  }
+
+  if (queryString === "load-script") {
+    response.setHeader("Content-Type", "application/javascript", false);
+    response.write(SCRIPT);
+    return;
+  }
+
+  // we should never get here but just in case return something unexpected
+  response.write("do'h");
+}