fix(a11y): Count aria-label without duplicated item in loop option

[digitas-git]

If the loop option is set, the aria label may only be attached to the non-duplicated elements. Only the elements that are not duplicated are counted.

FIX: #4781

[nolimits4web]

Thanks for your PR! Don't you think maybe it would be better if duplicated slides will have same aria label index as their original copies? You can see in loop mode each slide has data-swiper-slide-index attribute with "realIndex"

[digitas-git]

The aria-label is usefull for screenreader to tell the user which slide is active and how many slider there are. But on duplicated slides we have the attribute aria-hidden=true this tell the screenreader that he shouldn't read it. So i think its unnecessary to set the "realIndex" there.

[nolimits4web]

We don't set aria-hidden on duplicated slides, so I made what I suggeted

[digitas-git]

Hey, thats correct, it was my fault, we build in our project the aria-hidden option. Thanks for fixing.
A PullRequest for aria-hidden will follow. Many Thanks.