| <!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> |
| <script src="../trusted-click.js"></script> |
| <body> |
| <div> |
| This page tests that entering fullscreen doesn't adjust the scroll offset |
| </div> |
| <script> |
| promise_test(async (t) => { |
| t.add_cleanup(() => { |
| if (document.fullscreenElement) { |
| return document.exitFullscreen(); |
| } |
| }); |
| await trusted_click(); |
| document.scrollingElement.scrollTop = 300; |
| await document.documentElement.requestFullscreen(); |
| await fullScreenChange(); |
| |
| assert_equals(document.fullscreenElement, document.documentElement); |
| assert_not_equals(document.scrollingElement.scrollTop, 0); |
| document.scrollingElement.scrollTop = 0; |
| }); |
| </script> |