1 files changed, 27 insertions, 0 deletions
diff --git a/testing/web-platform/tests/speculation-rules/prerender/resources/echo-referrer.py b/testing/web-platform/tests/speculation-rules/prerender/resources/echo-referrer.py
new file mode 100644
index 0000000000..38b54291ca
--- /dev/null
+++ b/testing/web-platform/tests/speculation-rules/prerender/resources/echo-referrer.py
@@ -0,0 +1,27 @@
+"""A page that echoes the Referrer header value via BroadcastChannel.
+"""
+
+
+def main(request, response):
+    referrer = request.headers.get(b"referer")
+    uid = request.GET.first(b"uid")
+
+    if referrer is None:
+        referrer = b"(none)"
+
+    html = u'''
+<html>
+<head>
+<title>Echo referrer</title>
+</head>
+<script src="/speculation-rules/prerender/resources/utils.js"></script>
+<body>
+<script>
+const bc = new PrerenderChannel('prerender-channel', '%s');
+bc.postMessage({referrer: '%s'});
+</script>
+</body>
+</html>
+'''
+    return (200, [("Content-Type", b"text/html")],
+            html % (uid.decode("utf-8"), referrer.decode("utf-8")))