Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10506063_00139_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-86bd1f0b-0a22-4817-9b95-3e147d4e6764",
      "cw-d7bcad29-497a-4be5-a2ff-7326b39ff83f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9007cd27-8069-40f0-addf-976736c91227",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10506063_00139_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-d7bcad29-497a-4be5-a2ff-7326b39ff83f",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10506063_00139_u001",
      "navDate": "1866-08-04",
      "multId": "bsbmult00000440",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10506063_00139_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}