Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10509812_00087_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-020f3c20-44ce-4d0c-afff-c8b1912611e7",
      "cw-cd6307f3-f233-4788-8dcc-30d4bd6ed56e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5147e376-c3c0-4ae1-a917-c2c39b012a6d",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10509812_00087_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-cd6307f3-f233-4788-8dcc-30d4bd6ed56e",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10509812_00087_u001",
      "navDate": "1844-04-12",
      "multId": "bsbmult00000787",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10509812_00087_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}