Is it possible to use the ion-back-button inside the ion-header directive?
<ion-header-bar align-title="left" class="bar-light topBar">
<div class="buttons">
<button ng-click="toggleLeft()" class="button button-icon icon ion-navicon"></button>
</div>
<h1 class="title">Title</h1>
<div class="buttons">
<button ng-click="openModal()" class="button button-icon icon"><i class="ion-plus"></i> New note</button>
</div>
</ion-header-bar>
<ion-nav-view animation="nav-title-slide-ios7"></ion-nav-view>