I store all my SVG icons in one sprite and use it like that:
<ion-nav-title> <svg class="dropShadow"> <use x="0" y="0" xlink:href="img/sprite.svg#logo1"></use> </svg> </ion-nav-title>
It worked perfectly on iOS 9.2, but on iOS 9.3 all icons are missing.
Is that a bug? Any ideas?