Mirador Viewer

TypeError: Failed to fetch

{
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    "error": "TypeError: Failed to fetch",
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    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb00133614_00453_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
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    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-cf59d2d7-2416-48eb-985a-6db2a2156ee8",
    "thumbnailNavigationPosition": "far-right",
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    "calendarNavigation": {
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      "navDate": "1927-03-18",
      "multId": "bsbmult00000011",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": "https://dfg-viewer.de/show?tx_dlf%5Bid%5D=https%3A%2F%2Fapi.digitale-sammlungen.de%2Fdfg%2Fmets%2Fmods%2Fv1%2Fdigitalobjects%2Fidentifier%2Fmdz-obj-child%3Absb00133614_00453_u001",
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb00133614_00453_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
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}