Mirador Viewer

TypeError: Failed to fetch

{
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    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11304969/manifest",
    "isFetching": false
  },
  "window": {
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    "companionAreaOpen": true,
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    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c7c3c3f4-b2f2-465d-95e0-0c64b7c984c4",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11304969/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7c21f1ca-fcc9-4636-b79c-fb9232c7ff99",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11304969/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}