Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503722_00551_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-478fedbd-0e8b-40c3-af6c-2d1804efa5f5",
      "cw-d954f9ec-fdd5-4fbf-94b5-d201fb1a7083"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5840d42c-ed9c-441a-89c2-81522665ef18",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503722_00551_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-d954f9ec-fdd5-4fbf-94b5-d201fb1a7083",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10503722_00551_u001",
      "navDate": "1864-09-21",
      "multId": "bsbmult00000678",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503722_00551_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}