Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/f8673950-57ad-4296-9d97-e31eec520e89/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-81556f9a-c3b4-4cd8-b816-7cb087868f98",
      "cw-be21b810-a6ef-4083-b6e5-a2d5ae023788"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-98891147-5225-45d8-b8c2-b7e5c0b0d04f",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/f8673950-57ad-4296-9d97-e31eec520e89/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-be21b810-a6ef-4083-b6e5-a2d5ae023788",
    "thumbnailNavigationPosition": "far-bottom"
  }
}