| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="./resources/intersection-observer-test-utils.js"></script> |
| |
| <style> |
| pre, #log { |
| position: absolute; |
| top: 0; |
| left: 200px; |
| } |
| iframe { |
| width: 160px; |
| height: 100px; |
| overflow-y: scroll; |
| } |
| .spacer { |
| height: calc(100vh + 100px); |
| } |
| </style> |
| |
| <div class="spacer"></div> |
| <iframe src="resources/cross-origin-subframe.html" sandbox="allow-scripts"></iframe> |
| <div class="spacer"></div> |
| |
| <script> |
| async_test(function(t) { |
| var iframe = document.querySelector("iframe"); |
| |
| function handleMessage(event) { |
| if (event.data.hasOwnProperty('scrollTo')) { |
| document.scrollingElement.scrollTop = event.data.scrollTo; |
| waitForNotification(t, function() { iframe.contentWindow.postMessage("", "*"); }, |
| "document.scrollingElement.scrollTop = " + event.data.scrollTo); |
| } else if (event.data.hasOwnProperty('actual')) { |
| checkJsonEntries(event.data.actual, event.data.expected, event.data.description); |
| } else if (event.data.hasOwnProperty('DONE')) { |
| document.scrollingElement.scrollTop = 0; |
| t.done(); |
| } else { |
| var description = event.data.description; |
| waitForNotification(t, function() { iframe.contentWindow.postMessage("", "*"); }, description); |
| } |
| } |
| |
| window.addEventListener("message", t.step_func(handleMessage)); |
| |
| iframe.onload = t.step_func(function() { |
| waitForNotification(t, function() { iframe.contentWindow.postMessage("", "*") }, "setup"); |
| }); |
| }, "Intersection observer test with no explicit root and target in a cross-origin iframe."); |
| </script> |
