Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/voYMnOe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-355c3ecf-b6d7-4de4-b181-0425372d0a3c",
      "cw-9d210caf-391c-486a-9c96-0116430c572c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-57934948-6868-4e13-93ac-dc4642b07fe2",
    "manifestId": "https://dam.iuav.it/iuav/containers/voYMnOe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9d210caf-391c-486a-9c96-0116430c572c"
  }
}