[Webkit-unassigned] [Bug 245722] Smooth scroll in viewport with scroll-snap fails on iOS

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=245722

Johannes Odland <johannes.odland at nrk.no> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Smooth scroll on iframe     |Smooth scroll in viewport
                   |fails on iOS                |with scroll-snap fails on
                   |                            |iOS

--- Comment #5 from Johannes Odland <johannes.odland at nrk.no> ---
Changing title as the bug does not occur in iframes, it occurs when there is scroll-snapping in the main viewport.

eg:

```css
html {
  scroll-snap-type: y mandatory;
}

.some-element {
  scroll-snap-align: top;
}
```

```js {
  document.querySelector('.some-element').scrollIntoView({ behavior: "smooth" })  // Fails
}

See https://codepen.io/johannesodland/pen/PoEaMWO and the attached video.
The code-pen must be tested in "debug mode" and not in "edit mode" as it can not be reproduced inside the iframe there.

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