Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/XeWYrDv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5cac5ffc-d977-47df-9eb3-912015d16bff",
      "cw-4755d679-6d6d-4eb4-9668-60060f730125"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1eba4a86-7991-484c-aa3c-c3f582928be3",
    "manifestId": "https://dam.iuav.it/iuav/containers/XeWYrDv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4755d679-6d6d-4eb4-9668-60060f730125"
  }
}