| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="utils.js"></script> |
| <title>Fenced frame content to report the value of window.parent</title> |
| |
| <body> |
| <script> |
| async function init() { // Needed in order to use top-level await. |
| // This file is meant to run in a <fencedframe>. It reports back to the |
| // outermost page whether or not the value of `window.parent` was correct for: |
| // 1.) Top-level fenced frames |
| // 2.) Nested iframes inside a fenced frame |
| // 3.) Nested fenced frames |
| const url = new URL(location.href); |
| |
| const [window_parent_key, window_parent_ack_key, nested] = parseKeylist(); |
| const is_nested_fenced_frame = (nested == "nested"); |
| |
| // Report whether or not `window.parent` was correct. |
| let pass_string = ""; |
| if (is_nested_fenced_frame) |
| pass_string = "pass: fenced frame > fenced frame"; |
| else |
| pass_string = "pass: fenced frame"; |
| |
| let result = (window.parent == window) ? pass_string : "fail"; |
| writeValueToServer(window_parent_key, result); |
| |
| // If this page is a nested fenced frame, all we need to do is report the |
| // top-level value. |
| if (is_nested_fenced_frame) |
| return; |
| |
| // Wait for ACK, so we know that the outer page has read the last value from |
| // the `window_parent_key` stash and we can write to it again. |
| await nextValueFromServer(window_parent_ack_key); |
| |
| // Now test `window.parent` inside an iframe. |
| const iframe = document.createElement('iframe'); |
| iframe.src = "dummy.html"; |
| const load_promise = new Promise((resolve, reject) => { |
| iframe.onload = resolve; |
| iframe.onerror = reject; |
| }); |
| document.body.append(iframe); |
| |
| await load_promise; |
| |
| // Report whether or not the subframe's `window.parent` was correct. |
| result = (iframe.contentWindow.parent == window) ? |
| "pass: fenced frame > iframe" : "fail"; |
| writeValueToServer(window_parent_key, result); |
| |
| // Wait for ACK, so we know that the outer page has read the last value from |
| // the `window_parent_key` stash and we can write to it again. |
| await nextValueFromServer(window_parent_ack_key); |
| |
| attachFencedFrame(generateURL("window-parent-inner.html", |
| [window_parent_key, window_parent_ack_key, "nested"])); |
| } |
| |
| init(); |
| </script> |
| </body> |
