RESOLVED DUPLICATE of bug 248879 282998
HTMLElement.requestFullscreen does not return a Promise. 
https://bugs.webkit.org/show_bug.cgi?id=282998
Summary HTMLElement.requestFullscreen does not return a Promise.
Andrew Hodel
Reported 2024-11-12 11:08:47 PST
It is document on MDN as returning a Promise and a Promise is returned in Edge, Firefox, Chrome and Oculus.
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Andrew Hodel
Comment 1 2024-11-13 05:17:42 PST
Karl Dubost Bug 248879 is marked as fixed and this problem is not fixed. There is no promise returned by HTMLElement.requestFullscreen in Safari.
Karl Dubost
Comment 2 2024-11-13 17:07:55 PST
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
Karl Dubost
Comment 3 2024-11-13 17:13:49 PST
*** This bug has been marked as a duplicate of bug 248879 ***
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