| <!DOCTYPE html> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| |
| <style> |
| div { |
| width: 100px; |
| height: 100px; |
| } |
| </style> |
| |
| <div id=target></div> |
| |
| <script> |
| if (self.internals) { |
| internals.DisableIntersectionObserverThrottleDelay(); |
| } |
| async_test(t => { |
| let observer = new IntersectionObserver( |
| entries => {}, |
| {trackVisibility: true, delay: 100}); |
| let target = document.getElementById('target'); |
| observer.observe(target); |
| let newdoc = document.implementation.createHTMLDocument(""); |
| newdoc.body.appendChild(target); |
| target.parentNode.removeChild(target); |
| requestAnimationFrame(() => { |
| setTimeout(() => { t.done() }); |
| }); |
| }, "Removing an IntersectionObserver target from a frameless document. Test passes if it does not crash."); |
| </script> |
