Mirador viewer

TypeError: Failed to fetch
{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://sandbox.zenodo.org/api/iiif/record:180070/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://sandbox.zenodo.org/api/iiif/record:180070/canvas/2477F58-03-01-Vorsatzblatt-posthorn%20in%20crowned%20shield-EM-bearbeitet.tif",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-681e674d-8561-48bd-afad-fef02df97c3c",
      "cw-fa058aec-7423-490f-a828-5272eeb465d3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-b3e49db1-f989-4f5c-ba59-bcd7632137eb",
    "manifestId": "https://sandbox.zenodo.org/api/iiif/record:180070/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-fa058aec-7423-490f-a828-5272eeb465d3",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}
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