click on children cant set canvas view to center !

[HoseinDanesh]

click on children cant set canvas view to center !
when we move canvas inside with mouse(mousemove) and then click on child element ... the child emelnt cant be centrialize .
(the moved distance aded to new position left and make it out side of page view)
u can see that on this example :
https://philogb.github.io/jit/static/v20/Jit/Examples/Spacetree/example1.html
move canvas by mouse and then click on childs (do this several times and u will see problem)