Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505730_01285_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8cab12a9-1b41-488f-80a5-5422c8b69ed7",
      "cw-258f31b8-1ef8-44dc-85e7-6dd1b5906517"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4d3034b5-c216-45c7-b08c-a78e1b58b59d",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505730_01285_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-258f31b8-1ef8-44dc-85e7-6dd1b5906517",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10505730_01285_u001",
      "navDate": "1819-11-29",
      "multId": "bsbmult00000003",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505730_01285_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}