Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10509828_00305_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-123e298c-8d48-442e-b6a7-cc14f80fd748",
      "cw-3fc5d12c-8246-4275-a542-79d8912223e5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fbf3b398-5acb-4055-956a-e6c381bd1e46",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10509828_00305_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-3fc5d12c-8246-4275-a542-79d8912223e5",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10509828_00305_u001",
      "navDate": "1859-07-29",
      "multId": "bsbmult00000787",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10509828_00305_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}