Bug? Imageview PNG click

Hi, today i find a strange bug, i have put a imageview with a simple icon png, search icon.
and i have put the click at this imageview, but the click event works only on the not invisible part.

dont work if i click on transparent part.
i need to click on the white part of icon



if i click on white part of icon works the click event.
transparent like center of icon dont work.

i m uploaded the icon here

The same thing happens on a text node if it has transparent background.
If you add a onMouseEntered event, it only triggers when it's over the non-transparent area ie, the actual letters of the text, not the gaps between letters or even the centre of an 'O'.

Try this: