Custom font not working in Ionic View

I have an app with a custom front declared like this:

@font-face {
  font-family: 'OpenSans';
  font-weight: normal;
  font-style: normal;
  src:  local('OpenSans'), 
        url("#{$font-path}/OpenSans-Regular.ttf") format('truetype'),
        url("#{$font-path}/OpenSans-Regular.woff") format('woff'),
        url("#{$font-path}/OpenSans-Regular.woff2") format('woff2'),
        url("#{$font-path}/OpenSans-Regular.eot") format('embedded-opentype'),
        url("#{$font-path}/OpenSans-Regular.ttf") format('svg');

It’s working when I launch from the devApp + XCode, but not in Ionic view on iOS. Any ideas why?

UPDATE: Well, changing the path variable in variables.css seems to do it. Not sure why there is a difference between running it in view and in XCode, but hey.

$font-path: "assets/fonts";