Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b100-f04/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e453923d-7a48-479b-a420-3fdba9d2909d",
      "cw-0c3922ad-0d03-46d0-95f1-18fcae8a323a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0cb350da-8e88-43e6-8f9f-bf87c18d95c6",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b100-f04/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0c3922ad-0d03-46d0-95f1-18fcae8a323a",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b100-f04/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}