| <!DOCTYPE html> |
| <style> |
| body { |
| height: 10000px; |
| background: grey; |
| } |
| </style> |
| <title>fullscreen root block scrolling</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| <div>This page tests that entering fullscreen doesn't adjust the scroll offset</div> |
| <script> |
| async_test(t => { |
| document.scrollingElement.scrollTop = 300; |
| document.onfullscreenchange = t.step_func_done(() => { |
| assert_equals(document.fullscreenElement, document.documentElement); |
| assert_not_equals(document.scrollingElement.scrollTop, 0); |
| }); |
| document.documentElement.addEventListener('click', e => { |
| document.documentElement.requestFullscreen(); |
| }, {once: true}); |
| test_driver.click(document.documentElement); |
| }); |
| </script> |
