may be BUG: data-icon not showing in HEADER Bar

may be BUG: data-icon not showing in HEADER Bar

Hello,

I wrote a small sample code that shows a dropdown menu in the Header bar.

It is working fine except its NOT showing the 'data-icon'.
http://98.130.200.34/ayan/mobile/proto/app-menu.html

Please have a look, the right-button.

NOTE : I have used - data-icon="arrow-d" data-iconpos="notext"

Regards