Mirador Viewer

TypeError: Failed to fetch

{
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    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11304996/manifest",
    "isFetching": false
  },
  "window": {
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    "companionAreaOpen": true,
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    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-411320b0-6f26-4ab5-9c56-b287ee4424c9",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11304996/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9cb39327-d703-4153-81ea-6d355b5cc03f",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "canvasIndex": 0,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11304996/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}