Virtual slides + History bug

[dmaus]

Check that this is really a bug

• I confirm

Reproduction link

https://codesandbox.io/p/devbox/swiper-vue-virtual-slides-history-rwhdwd

Bug description

Not able to change the browser history after two slides.
At slide 3 it adds /4 in the browser URL.
History changes only show in preview mode: https://rwhdwd-5173.csb.app/

Expected Behavior

Changing the history according to that data-history attribute.

Actual Behavior

Using wrong slides for history change beginning at the third slide first, later throwing an error:
Cannot read properties of undefined (reading 'getAttribute')

Swiper version

11.0.6

Platform/Target and Browser Versions

macOS Chrome 121.0.6167.184 (Official Build) (x86_64)

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