RESOLVED FIXED 246313
The second pointerdown/touchstart event is missing on double-tap gesture 
https://bugs.webkit.org/show_bug.cgi?id=246313
Summary The second pointerdown/touchstart event is missing on double-tap gesture
weijarz
Reported 2022-10-10 19:39:17 PDT
To reproduce: https://www.oxyry.com/test/safari-double-tap-bug/safari-double-tap-bug.html 1. Open the url in safari 2. Add this webpage to Home Screen (REQUIRED!!!) 3. Open this webpage from Home Screen icon. 4. Double tap black area, only one pointerdown/touchstart event will be triggered! Note: Open it in Safari browser is working properly. Full source: ``` <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=0"> <title>Safari double tap bug</title> <link rel="manifest" href="manifest.json"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="default"> <style> #rootEl { height: 70vh; overflow: auto; background: #000; color: #fff; /* touch-action: none; */ user-select: none; } </style> </head> <body> <div> <div id="rootEl"></div> <p id="btns"> <button id="clearBtn">Clear</button> <button id="reloadBtn">Reload</button> </p> </div> <script> clearBtn.onclick = () => { rootEl.innerHTML = ''; } reloadBtn.onclick = () => { location.reload(); } const log = (msg) => { const m = document.createElement('div') m.textContent = msg rootEl.appendChild(m) } let i = 0 rootEl.addEventListener('pointerdown', () => { log(`pointerdown #${i++}`) }) let j = 0 rootEl.addEventListener('touchstart', (ev) => { log(`touchstart #${j++}`) // ev.preventDefault() }) </script> </body> </html> ```
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Radar WebKit Bug Importer
Comment 1 2022-10-17 19:40:18 PDT
<rdar://problem/101273397>
Richard Robinson
Comment 2 2022-11-03 14:39:46 PDT
Pull request: https://github.com/WebKit/WebKit/pull/6101
EWS
Comment 3 2022-11-04 20:34:16 PDT
Committed 256348@main (6115b3860098): <https://commits.webkit.org/256348@main> Reviewed commits have been landed. Closing PR #6101 and removing active labels.
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