Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10504052_00965_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b66c151b-71a0-4ea7-8563-a7037d56e42b",
      "cw-12787274-1b79-40db-8425-c3a9b8d3c777"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-40f1c4d3-bc8d-4118-88a5-e4e0bd1d4d3e",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10504052_00965_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-12787274-1b79-40db-8425-c3a9b8d3c777",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10504052_00965_u001",
      "navDate": "1850-09-29",
      "multId": "bsbmult00000483",
      "lastSearchUrl": null
    },
    "canvasIndex": 2,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10504052_00965_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}