|  | <!DOCTYPE html> | 
|  | <html class="reftest-wait"> | 
|  | <title>View transitions: basic cross-document navigation in a cross-origin iframe</title> | 
|  | <link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/"> | 
|  | <link rel="author" href="mailto:khushalsagar@chromium.org"> | 
|  | <link rel="match" href="root-element-transition-iframe-ref.html"> | 
|  | <script src="/common/reftest-wait.js"></script> | 
|  | <script src="resources/common.js"></script> | 
|  | <script src="/common/get-host-info.sub.js"></script> | 
|  |  | 
|  | <iframe id="inner"></iframe> | 
|  | <script> | 
|  | async function runTest() { | 
|  | let frame = document.getElementById("inner"); | 
|  |  | 
|  | let frameLoaded = waitForMessage("loaded"); | 
|  | frame.src = get_host_info().HTTP_REMOTE_ORIGIN + "/css/css-view-transitions/navigation/resources/root-element-transition-iframe.html?blue"; | 
|  | await frameLoaded; | 
|  | frame.contentWindow.postMessage("checkrendering", '*'); | 
|  | await waitForMessage("rendered"); | 
|  |  | 
|  | frame.src = get_host_info().HTTP_REMOTE_ORIGIN + "/css/css-view-transitions/navigation/resources/root-element-transition-iframe.html?grey"; | 
|  | await waitForMessage("transition"); | 
|  |  | 
|  | takeScreenshot(); | 
|  | } | 
|  | onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest)); | 
|  | </script> | 
|  | </html> |