Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503261_00491_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f1e6b85a-a2ac-423c-9300-4bf9a2f8cf6e",
      "cw-ef4ead12-0c23-40cb-92cc-126c287179a1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f8c78608-0971-4cca-b17d-f87fe9994458",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503261_00491_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-ef4ead12-0c23-40cb-92cc-126c287179a1",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10503261_00491_u001",
      "navDate": "1847-09-28",
      "multId": "bsbmult00000577",
      "lastSearchUrl": null
    },
    "canvasIndex": 1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503261_00491_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}