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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    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-b964716d-d4ed-4bf2-945e-3c2fbd769031",
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      "navDate": "1845-07-01",
      "multId": "bsbmult00000078",
      "lastSearchUrl": null
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    "canvasIndex": 0,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10485309_00011_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
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}