Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505375_00863_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1ed9b0ae-ed84-4a6c-a32d-e61676057c17",
      "cw-dfcd9b4b-85ff-43cf-a06a-b7d3c90ec363"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c594934a-41f1-4703-93b9-9f1b905c6bb1",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505375_00863_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-dfcd9b4b-85ff-43cf-a06a-b7d3c90ec363",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10505375_00863_u001",
      "navDate": "1817-09-09",
      "multId": "bsbmult00000531",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10505375_00863_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}