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+<!DOCTYPE HTML>
+<html>
+<head>
+ <meta charset="utf-8">
+ <title>bug 1777572</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+ <script>
+ SimpleTest.waitForExplicitFinish();
+
+ async function testCSPInheritance(closeOpenerWindow) {
+ let url = "file_bug1777572.html";
+ if (closeOpenerWindow) {
+ url += "?close";
+ }
+ let win = window.open(url);
+ return new Promise((resolve) => {
+ window.addEventListener("message", (event) => {
+ ok(event.data.includes("img-src"), "Got expected data " + event.data);
+ resolve();
+ }, { once: true});
+ });
+ }
+
+ async function run() {
+ // Test that CSP inheritance to the initial about:blank works the same way
+ // whether or not the opener is already closed when window.open is called.
+ await testCSPInheritance(false);
+ await testCSPInheritance(true);
+ SimpleTest.finish();
+ }
+
+ </script>
+</head>
+<body onload="run()">
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+</body>
+</html>