Line below header on set root page

hi friends, maybe you have already come across this, but I really have no idea how to ask in google for something like that !! : D

the problem is that when creating an ionic 3 project from scratch with a sliding menu and entering the default list that this project brings, a script or a line appears just below the header when making the change of root page, and remains there until some other action is made in the view.

You can remove that script or it’s line that appears there, I leave images to illustrate my problem.

regards!!


menu app create by default

press list item in menu

line below to header

See: https://github.com/Robinyo/big-top

but that image is compiled in ios? because in ios I have no problem, only on android