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Test Info: Warnings
- This test has a WPT meta file that expects 2 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /html/browsers/sandboxing/window-open-blank-from-different-initiator.html - WPT Dashboard Interop Dashboard
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="/common/utils.js"></script>
<script>
//
// A document creates a popup and makes it navigate elsewhere. The navigation
// will never commit. The popup has not completed any real load outside of the
// initial empty document. Then from a different window with a different CSP
// policy, make it navigate to about:blank.
//
// Web browser behavior might change depending on whether a pending navigation
// exists for in the popup or not. Both are tested here.
const same_origin = get_host_info().HTTP_ORIGIN;
// Return a promise, resolving when |element| triggers |event_name| event.
const future = (element, event_name) => {
return new Promise(resolve => element.addEventListener(event_name, resolve));
};
// `createNewPopup` is a function returning a new window that has not committed
// any real load in its frame, outside of the initial empty document. The two
// tests below vary depending on whether there is a pending navigation in the
// frame or not.
const runTest = (description, createNewPopup) => {
promise_test(async test => {
// Open a same-origin window with a different CSP.
const executor_path =
"/html/browsers/sandboxing/resources/execute-postmessage.html?pipe=";
const csp = "|header(Content-Security-Policy, " +
"sandbox" +
" allow-scripts" +
" allow-popups" +
" allow-same-origin" +
" allow-popups-to-escape-sandbox";
const executor = window.open(same_origin + executor_path + csp);
const executor_reply = await future(window, "message");
assert_equals(executor_reply.data, "ready");
const popup_name = token();
const popup = await createNewPopup(test, popup_name);
// Request the first real load from a DIFFERENT window with different CSPs.
const first_real_load = future(popup, "load");
executor.postMessage(`window.open("about:blank", "${popup_name}");`);
await first_real_load;
// The new blank document in the popup must inherit CSPs from |executor|:
let is_sandboxed = future(window, "message");
popup.document.write(`
<script>
try {
document.domain = document.domain;
opener.opener.postMessage("not sandboxed", "*");
} catch (error) {
opener.opener.postMessage("sandboxed", "*");
}
</scr`+`ipt>
`);
assert_equals((await is_sandboxed).data, "sandboxed");
}, description);
}
// Open a new window and start loading from an unresponsive server. The frame
// will be left with the initial empty document and a pending navigation.
runTest("One pending navigation", async (test, popup_name) => {
const unresponsive_path = "/common/slow.py?delay=1000000";
return window.open(same_origin + unresponsive_path, popup_name);
});
// Open a new window and start loading. The response is a 204 and the navigation
// is canceled. As a result, the frame will be left with the initial empty
// document and NO pending navigation.
runTest("No pending navigation", async (test, popup_name) => {
const no_content_path = "/common/blank.html?pipe=status(204)"
const popup = window.open(same_origin + no_content_path, popup_name);
// Unfortunately, there are no web API to detect a navigation has been
// canceled. Waiting using setTimeout is the only possible way to wait for it.
await new Promise(r => test.step_timeout(r, 1000));
return popup;
});
</script>