Handling missing data-hash

[elibarzilay]

Clear and concise description of the problem

When there are only some slides with a data-hash, getting to one without it will put a #null in the URL. The effect on user interaction is harmless, but for people who'd pay attention to the URL it looks like a bug, and it's also a likely bug on the slideshow author's side.

(This is indirectly related to #6789 -- sorry about the noise there, I somehow messed things up with running into a problem that was probably solved in 69acab4.)

Suggested solution

It would be better if such slides would just drop the #null from the URL, which IIUC, would make the overall interaction the same.

Alternative

Alternatively, it could assign an ordered integer to these slides, or a hash based on the slide contents. This would have the added benefit of making hashNavigation: true work immediately without adding the data attributes to slides.

(It's easy to just add document.querySelectorAll("div.swiper-slide").forEach((d, n) => d.dataset.hash = n + 1);, but why not make it possible to do so automatically...?)

Additional context

No response

Validations

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Would you like to open a PR for this feature?

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[nolimits4web]

Why do we need to support when it missing, data-hash is a requirement for it work. You can add data hashes on your side with JS