Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505963_00129_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-91068e78-7946-4aa9-bd48-8b234ce9ffc7",
      "cw-bef54e56-4df1-4d5d-9975-e66c0bba8a22"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fd1e7ba6-2468-4ba8-866f-815e611885f1",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505963_00129_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-bef54e56-4df1-4d5d-9975-e66c0bba8a22",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10505963_00129_u001",
      "navDate": "1819-03-18",
      "multId": "bsbmult00000014",
      "lastSearchUrl": null
    },
    "canvasIndex": 1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505963_00129_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}