Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503255_00123_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5b2718ba-4156-482e-84de-c9e70aa6c9a1",
      "cw-f0ee16c7-627c-4725-9a80-f401780fa49a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b993c7c8-1d1a-420e-a489-408e41b1d753",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503255_00123_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-f0ee16c7-627c-4725-9a80-f401780fa49a",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10503255_00123_u001",
      "navDate": "1846-01-13",
      "multId": "bsbmult00000577",
      "lastSearchUrl": null
    },
    "canvasIndex": 8,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503255_00123_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}