paper-icon-button goes into pressed state and does not fire "on-tap" event on touch devices

[anishcodes]

If you tap on paper-icon-button on its sides (i.e. not exactly in the centre), it goes into pressed state and "on-tap" event is not fired. This is easily reproducible on chrome browser (My version is 45.0.2454.94) on android devices.

[cdata]

Hi. Unfortunately, this is a side-effect of fuzzy target detection picking different targets for touch and click events. Please refer to this bug to track progress on the problem: https://github.com/Polymer/polymer/issues/1670