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Slider in invisible mode have components set to visible by default

Hi,

I noticed that, from version 0.32.0 to 0.33.0 of dash-core-components, one element of the slider, namely the blue rail, is set to visible by default.

Therefore, when hiding the slider using visibility:hidden CSS attribute in the layout, the rail remains visible:
03

Notice that parent div that is associated to a dcc.RangeSlider has visibility set to hidden while its children rc-slider-track and rc-slider-track1 has visibility: visible.

Note that I didn’t try for a standard Slider.

Cheers

Apparently, this bug has been fixed in version 0.35.0, but I couldn’t test it yet because of another strange change from version 0.33.0 to 0.34.0 with dcc.Store that no longer accept None values.

Cheers