Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11304979/manifest",
    "isFetching": false
  },
  "window": {
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    "companionAreaOpen": true,
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    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-dc8c32be-4a8f-4f3f-9032-1cc64c64cb6c",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11304979/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-17d9f94a-ce47-4c1f-8681-4e1a0e473922",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11304979/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}