The knob stays enlarged until you tap elsewhere. It is likely related to the `:active` state behaving differently with touch vs mouse. Probably these lines: [vendor/ember-toggle/themes/ios.css#L34-L36](https://github.com/knownasilya/ember-toggle/blob/master/vendor/ember-toggle/themes/ios.css#L34-L36). 
The knob stays enlarged until you tap elsewhere.
It is likely related to the
:activestate behaving differently with touch vs mouse. Probably these lines: vendor/ember-toggle/themes/ios.css#L34-L36.