Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503227_00955_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-78ea0974-7c6d-4cdf-953b-eb7c60867e50",
      "cw-ac601230-6c81-423d-9806-86492f96edd0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-df2b3bce-9291-4ce1-b6bd-ba44dc8107af",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503227_00955_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-ac601230-6c81-423d-9806-86492f96edd0",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10503227_00955_u001",
      "navDate": "1835-09-11",
      "multId": "bsbmult00000577",
      "lastSearchUrl": null
    },
    "canvasIndex": 7,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503227_00955_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}