When a value is assigned to the currentTime property during loadedmetadata, this has the following consequences: - Playback starts at position 0 - It is no longer possible to change the playback position either via the user interface or via javascript. - timeupdate events are no longer emitted correctly. This problem has been observed on iOS 17, 16, 15, 14, 13. Code sample: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <style> html, body { height: 100vh; margin: 0; padding: 0; } .player { width: 100%; height: 50vh; height: 50dvh; } </style> </head> <body> <video class="player" controls playsinline ></video> <script> const player = document.querySelector('.player'); player.addEventListener('loadstart', () => { console.log('loadstart'); }); player.addEventListener('loadedmetadata', () => { console.log('loadedmetadata', player.duration); player.currentTime = 600; }); player.addEventListener('loadeddata', () => { console.log('loadeddata'); }); player.addEventListener('timeupdate', () => { console.log('timeupdate', player.currentTime); }); player.src = 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8'; </script> </body> </html>
<rdar://problem/115784490>