1 files changed, 49 insertions, 0 deletions
diff --git a/testing/web-platform/tests/content-security-policy/frame-src/frame-src-self-unique-origin.html b/testing/web-platform/tests/content-security-policy/frame-src/frame-src-self-unique-origin.html
new file mode 100644
index 0000000000..3d04a08ad7
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+++ b/testing/web-platform/tests/content-security-policy/frame-src/frame-src-self-unique-origin.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <title>frame-src-self-unique-origin</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+</head>
+
+<body>
+    <p>
+        The origin of an URL is called "unique" when it is considered to be
+        different from every origin, including itself. The origin of a
+        data-url is unique. When the current origin is unique, the CSP source
+        'self' must not match any URL.
+    </p>
+    <script>
+        var iframe = document.createElement("iframe");
+        iframe.src = encodeURI(`data:text/html,
+          <script>
+              /* Add the CSP: frame-src: 'self'. */
+              var meta = document.createElement('meta');
+              meta.httpEquiv = 'Content-Security-Policy';
+              meta.content = "frame-src 'self'";
+              document.getElementsByTagName('head')[0].appendChild(meta);
+
+              /* Notify the parent the iframe has been blocked. */
+              window.addEventListener('securitypolicyviolation', e => {
+                  if (e.originalPolicy == "frame-src 'self'")
+                      window.parent.postMessage('Test PASS', '*');
+              });
+          </scr`+`ipt>
+
+          This iframe should be blocked by CSP:
+          <iframe src='data:text/html,blocked_iframe'></iframe>
+        `);
+        if (window.async_test) {
+            async_test(t => {
+                window.addEventListener("message", e => {
+                    if (e.data == "Test PASS")
+                      t.done();
+                });
+            }, "Iframe's url must not match with 'self'. It must be blocked.");
+        }
+        document.body.appendChild(iframe);
+    </script>
+</body>
+
+</html>