Mirador Viewer

TypeError: Failed to fetch

{
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    "error": "TypeError: Failed to fetch",
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    "isFetching": false
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    "maximized": false,
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    "rotation": null,
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    "thumbnailNavigationId": "cw-add07eed-80b3-4155-bc8e-e1d6b8309830",
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      "navDate": "1816-06-20",
      "multId": "bsbmult00000610",
      "lastSearchUrl": null
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    "canvasIndex": 0,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503644_00249_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
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}