Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wQK2g4b/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua598762/LzJWl9G",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-79635340-876a-46a4-8871-2303885aeb70",
      "cw-c59def9f-0b10-4d98-8dd5-cfcf346430f3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-66b1c43b-ad83-45ba-8e9d-7a7fb97109cb",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wQK2g4b/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c59def9f-0b10-4d98-8dd5-cfcf346430f3",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}