the header height of a page that pushed by a modal page will be changed smaller

[ionitron-bot]

Original issue by @joeradar on 2017-01-18T09:39:30Z

Ionic version: (check one with "x")
[ ] 1.x
[ x] 2.x

I'm submitting a ... (check one with "x")
[ x] bug report
[ ] feature request
[ ] support request => Please do not submit support requests here, use one of these channels: https://forum.ionicframework.com/ or http://ionicworldwide.herokuapp.com/

Current behavior:

my iOS app pop a modal page, the app header is normal, it has a few of space for iOS system status bar. but, I push an other page with navCtrl in the modal page, the header will be smaller than previous page,

Expected behavior:

the header height of the new page be pushed will be same with the previous page
Steps to reproduce:

Related code:

insert any relevant code here

Other information:

Ionic info: (run ionic info from a terminal/cmd prompt and paste output below):

insert the output from ionic info here