Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10485490_00969_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b0d4f05e-59eb-4172-ba3e-45454e6d9184",
      "cw-b217718b-2e5d-49c5-969d-5e18b8719c4f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f83ed32b-bb94-4666-b7da-11fdfb4f94b0",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10485490_00969_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-b217718b-2e5d-49c5-969d-5e18b8719c4f",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10485490_00969_u001",
      "navDate": "1856-09-26",
      "multId": "bsbmult00000620",
      "lastSearchUrl": null
    },
    "canvasIndex": 2,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10485490_00969_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}