I am having this exact issue, but only on iOS so far.
It might be related with the fact that we disabled bouncing in our side menu...
<ion-side-menu side="left" class="main-menu" ng-controller="MenuCtrl">
<ion-content has-bouncing="false">
</ion-content>
</ion-side-menu>We are going to be releasing our app soon and this is a roadblock as Safari won't continue and hide the splash screen...