Mirador Viewer

TypeError: Failed to fetch

{
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    "error": "TypeError: Failed to fetch",
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    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
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    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-f53c710a-8e48-4799-8ca0-d8cad272afb1",
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      "navDate": "1825-11-20",
      "multId": "bsbmult00000002",
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    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb00085874_00320_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}