Live preview not working in some browsers

[tagawa]

1. Navigate to: https://pikock.github.io/bootstrap-magic/app/index.html#!/editor
2. Change the colour code in the @gray-dark field, e.g. to #c0ffee
3. Click the red Apply button at the bottom of the screen

Expected Behavior:
The main text in the right preview pane should turn a hard-to-read aqua colour.

Actual Behavior:
Nothing - the preview is unchanged. Seems to happen in the latest Firefox, Chrome and Opera.

More comments here: https://webcompat.com/issues/513

[lendrick]

I was having this issue, and I was able to work around it in Firefox by using an incognito window. In Chrome, clearing my history fixed it.

[mikecastrodemaria]

Same issue on chrome 43.0.2357.134, FF 41.0b1, etc. any idea to fix it ?

[karlcow]

This seems to work now on Firefox. So we could close it.

[JohannesBorchard]

This also happens in Safari 11.0.1

Changing @link-color and applying the changes doesn't have an effect on the live preview.