Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wl7q7GR/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua436147/5gl4l8K",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-88b54778-9682-4143-ab1f-415369fcddda",
      "cw-9b6883f5-c6a8-4c6a-b5a9-15513beee562"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "wl7q7GR",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wl7q7GR/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9b6883f5-c6a8-4c6a-b5a9-15513beee562",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}