Ion-tabs when scrolling down the screen does not hiding navbar in iOS Safari?

HTML structure is as follows:

ion-view
ion-content
ion-tabs
ion-tab …

The problem is that the project is necessary when scrolling down to hide the upper and lower standard panels Safari. But they did not hide, as I believe is happening inside the tab scrolling and Safari does not understand what is happening to scroll the screen, thereby hiding the standard browser panel. Perhaps someone faced with this problem?