Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10502800_00535_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1f6369b6-358a-4a35-9396-891c05fa7cb7",
      "cw-5f9b5275-2dd3-4902-9923-744dfcacff8d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-16bc7634-bd7e-4c5a-85c2-3f92db102e57",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10502800_00535_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-5f9b5275-2dd3-4902-9923-744dfcacff8d",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10502800_00535_u001",
      "navDate": "1856-11-12",
      "multId": "bsbmult00000576",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10502800_00535_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}