Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505730_00487_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a393d96f-b6dc-404d-9f87-d3115c8a37f9",
      "cw-c1e095bc-80a0-41d6-8e61-4c31f4826166"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-cc80e4dd-6c5f-4134-86eb-2f125068b5e6",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505730_00487_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-c1e095bc-80a0-41d6-8e61-4c31f4826166",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10505730_00487_u001",
      "navDate": "1819-05-05",
      "multId": "bsbmult00000003",
      "lastSearchUrl": null
    },
    "canvasIndex": 3,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505730_00487_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}