Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503856_00601_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-dee96113-bc82-4c67-b76a-4db542548710",
      "cw-6aeb8557-5e38-41ff-86ad-3570e0fe1d9e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-06f1f8a2-e31e-41f5-b1a2-b5cf9b0831f6",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503856_00601_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-6aeb8557-5e38-41ff-86ad-3570e0fe1d9e",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10503856_00601_u001",
      "navDate": "1844-09-07",
      "multId": "bsbmult00000663",
      "lastSearchUrl": null
    },
    "canvasIndex": 3,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503856_00601_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}