Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11303799/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ff6c1731-f8b5-407f-b34d-711543a3de65",
      "cw-02a76d78-a1e5-47ab-8e40-be61bfacc00e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-20885f08-cda5-4e2a-a922-c798641d7fd1",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11303799/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-02a76d78-a1e5-47ab-8e40-be61bfacc00e",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "canvasIndex": 0,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11303799/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}