Slider: Discrete slider not initializing current value

[archnode]

What MDC-Web Version are you using?

v. 0.0.18

What are the steps to reproduce the bug?

1. Set aria-valuenow to a certain value
2. Initialize the Slider with autoinit or js
3. Check the initialized sliders value

What is the expected behavior?

The initial state of the slider is set to the value specified with aria-valuenow.

What is the actual behavior?

The initial value of the slider is shown (and initialized as) zero.

Other information

The behavior can be observed in the demos as well.
Thanks for your work on these great components!

[aaronhudon]

Quick codepen using latest sources show's it's broken as of 2017-08-24

https://codepen.io/aaronhudon/pen/xLJPMY

[kfranqueiro]

Thanks for bringing this to our attention! Definitely seems like a bug.

[kfranqueiro]

Based on fiddling with the unpkg URLs in @aaronhudon's CodePen, it looks as if this worked in 0.14.0 but doesn't work in 0.15.0. That should help us narrow down to investigate.

Edit: Actually, 0.15.0 is when discrete was introduced, so this problem may have existed with discrete sliders from the beginning.

[archnode]

Tried my best to provide a pull request and a (micro) fix for this.