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-rw-r--r--toolkit/components/antitracking/test/browser/file_iframe_document_open.html19
1 files changed, 19 insertions, 0 deletions
diff --git a/toolkit/components/antitracking/test/browser/file_iframe_document_open.html b/toolkit/components/antitracking/test/browser/file_iframe_document_open.html
new file mode 100644
index 0000000000..fd2969f270
--- /dev/null
+++ b/toolkit/components/antitracking/test/browser/file_iframe_document_open.html
@@ -0,0 +1,19 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+<meta charset="utf-8">
+<script>
+function run() {
+ let ifr = document.createElement("iframe");
+ document.body.appendChild(ifr);
+
+ let doc = ifr.contentWindow.document;
+ doc.open();
+ doc.write(`<script>document.cookie = "foo=bar"<\/script>`);
+ doc.close();
+}
+</script>
+</head>
+<body onLoad="run();">
+</body>
+</html>