Mirador viewer

TypeError: Failed to fetch
{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archivelab.org/iiif/naeb-b020-f03/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b4d9c225-98ea-4a26-b670-28596e969357",
      "cw-f156227b-2229-46e0-9761-582b801f4fbf"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-525b639a-ff4e-4dd9-9610-5e63b116f76a",
    "manifestId": "https://iiif.archivelab.org/iiif/naeb-b020-f03/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f156227b-2229-46e0-9761-582b801f4fbf",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archivelab.org/iiif/naeb-b020-f03/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}
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