Diagonal Swipes

[selcuk-sahin]

Check that this is really a bug

• I confirm

Reproduction link

https://swiperjs.com/

Bug description

on iOS devices (tested with Safari & Brave), swiping horizontally also triggers a vertical scroll.
This was not the case with Swiper version ^8.

It seems like the transition ends immediately.
Please check the screen recordings.

Expected Behavior

I should be either swiping horizontally or scrolling vertically, but not both.
Here's an example from macOS Brave (Chromium)

swiper-mac-android.mov

Actual Behavior

When I scroll slightly vertically, the swiper.js slide transition starts but almost immediately ends. From there, I start to scroll vertically.

swiper-ios.mp4

Swiper version

9.1.0

Platform/Target and Browser Versions

ios, Safari

Validations

• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.
• Make sure this is a Swiper issue and not a framework-specific issue

Would you like to open a PR for this bug?

• I'm willing to open a PR

[nolimits4web]

Are you on iOS 16.2?

[selcuk-sahin]

Are you on iOS 16.2?

I'm on iOS 16.1.1

[nolimits4web]

Try on 16.2

[selcuk-sahin]

Try on 16.2

Yes, the issue persists on iOS 16.2 and 16.3 too.

[DzmitryShamal]

15.5 also (v8 works well, but after upgrading to v9 the problem occurs)

[dkornilove]

ios 15.7.9
v.10.2.0
the issue persists

[rojadesign]

Issue still persists after 74bb1cc in a very similiar manner as before. Tested with 8eb3b44 → swiper 11.0.3 on:

• iPhone 12 Mini (iOS 16.0)
• iPhone 13 (iOS 17.1)
• iPhone 15 (iOS 17.0)

[epetousis]

Swiper 11.0.4 works near perfectly for me. I managed to trigger one single diagonal swipe but I cannot replicate it no matter how much I try.