| <!DOCTYPE html> |
| <script src="/common/get-host-info.sub.js"></script> |
| <script src="/css/cssom-view/support/scroll-behavior.js"></script> |
| <style> |
| .spacer { |
| height: calc(100vh + 100px); |
| } |
| </style> |
| <div class="spacer"></div> |
| <iframe id="iframe"></iframe> |
| <script> |
| iframe.src = // secure port |
| get_host_info().HTTPS_NOTSAMESITE_ORIGIN + "/intersection-observer/resources/nested-cross-origin-grand-child-iframe.html"; |
| |
| window.addEventListener("message", async event => { |
| if (event.data == "scroll") { |
| iframe.scrollIntoView({ behavior: "instant" }); |
| await waitForScrollEnd(document.scrollingElement); |
| window.parent.postMessage("scrollEnd", "*"); |
| } |
| }); |
| </script> |
