fix: prevent iOS Safari global overscroll with modern CSS - #24
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iOS Safari 11.3+ defaults touchmove listeners on document/body to
passive, silently ignoring preventDefault(). This caused the native
elastic overscroll to leak through despite the app's custom scroll
implementation.
Changes:
- Add overscroll-behavior: none on html/body and #wrapper to disable
native overscroll bounce via CSS (supported since iOS Safari 16)
- Add touch-action: none on body and #wrapper to tell the browser
not to handle any default touch gestures
- Set html to position: fixed to lock the viewport on iOS Safari
- Use addEventListener with { passive: false } instead of Zepto .on()
for the touchmove prevention listener, ensuring preventDefault()
is actually honored
- Add viewport-fit=cover to viewport meta for notched devices
https://claude.ai/code/session_01QJx2mW2xD7CvJMQNddUTGo
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iOS Safari 11.3+ defaults touchmove listeners on document/body to passive, silently ignoring preventDefault(). This caused the native elastic overscroll to leak through despite the app's custom scroll implementation.
Changes:
https://claude.ai/code/session_01QJx2mW2xD7CvJMQNddUTGo