282998 2024-11-12 11:08:47 -0800 HTMLElement.requestFullscreen does not return a Promise. 2024-11-13 17:13:49 -0800 1 1 1 Unclassified WebKit DOM Safari 18 All macOS 15 RESOLVED DUPLICATE 248879 https://bugs.webkit.org/show_bug.cgi?id=248879 P2 Major --- 1 andrewhodel webkit-unassigned jer.noble karlcow ntim oldest_to_newest 2074569 0 andrewhodel 2024-11-12 11:08:47 -0800 It is document on MDN as returning a Promise and a Promise is returned in Edge, Firefox, Chrome and Oculus. 2074781 1 andrewhodel 2024-11-13 05:17:42 -0800 Karl Dubost Bug 248879 is marked as fixed and this problem is not fixed. There is no promise returned by HTMLElement.requestFullscreen in Safari. 2074985 2 karlcow 2024-11-13 17:07:55 -0800 const element = document.createElement('div'); console.log('requestFullscren: ', element.requestFullscreen()); Safari: Promise Firefox: Promise Chrome: Promise Tested in Safari Technology Preview 206 20621.1.3.21.1 Firefox Nightly 134.0a1 13424.11.7 Google Chrome Canary 133.0.6835.0 6835.0 2074987 3 karlcow 2024-11-13 17:13:49 -0800 *** This bug has been marked as a duplicate of bug 248879 ***