Environment
Component nativescript has 5.1.1 version and is up to date.
Component tns-core-modules has 5.2.1-next-2019-01-25-152036-01 version and is up to date.
Component tns-ios has 5.1.1 version and is up to date.

Describe the bug

I created a new TS core project using tns create myApp --template tsc and replaced the page xml file with the following.

main-page.xml.txt

I also added tns plugin add nativescript-ui-sidedrawer

The problem I'm getting is that there's about a 50px space above where the scrollview is supposed to start - the scrollview should take up the full screen (shouldn't see any green).

If I comment out the ScrollView in the mainContent - it works.

If I comment out the SideDrawer - it works.

If I comment out the ActionBar - the offset is less - but it's there (area in green).

This problem happens only on ios - not android.