{% load static %}{
  "icons": [
    { "src": "{{ request.scheme }}://{{ request.get_host }}{% static 'common/img/icon-192.png' %}", "type": "image/png", "sizes": "192x192" },
    { "src": "{{ request.scheme }}://{{ request.get_host }}{% static 'common/img/icon-512.png' %}", "type": "image/png", "sizes": "512x512" }
  ]
}