Paper-button still is highlighted if tabbing out of focus while rippling very quickly.

[kevinpschaaf]

From @sammiequon71 on September 27, 2016 17:21

Description

When pressing space bar to activate a button, trying to tab to another button quickly causes the first button to remain highlighted.

Live Demo

https://jsbin.com/kelosizida/edit?html,output

Steps to Reproduce

Expected Results

The first button should not be highlighted if tabbed out quickly.

Actual Results

The first button is highlighted if tabbed out quickly.

Browsers Affected

• [ x] Chrome
• [ ] Firefox
• [ ] Edge
• [ ] Safari 9
• [ ] Safari 8
• [ ] IE 11

  Versions

• Polymer: v1.0
• webcomponents: vX.X.X

Copied from original issue: Polymer/polymer#4008