Square Background on Active <md-button> (ngMaterial)

Hi,

I tried ngMaterial with Ionic and it’s amazing.

On clicking a circular md-button, ripple effect occurs in a square background than being circular in shape.It exceeds the shape/size of button and is square shaped. Is there some way to fix this issue?

I’m not able to capture the CSS class being added here to debug.

The same happens for buttons randomly shaped than square/rectangular.

@mhartington

Any help would be appreciated.!