Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11311647_00307_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-bf7b64b7-9d4b-4053-b2ba-c0da4aa35636",
      "cw-0015d620-9fd1-4fef-bd81-61ea29f6b420"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5dc10c6b-8b04-406b-b846-85e9d25972ec",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11311647_00307_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-0015d620-9fd1-4fef-bd81-61ea29f6b420",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb11311647_00307_u001",
      "navDate": "1875-09-26",
      "multId": "bsbmult00000604",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11311647_00307_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}