TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:14658/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a71eb33e-9d36-4a7e-afd1-5fddab7a478d",
      "cw-41194300-5bdf-4cf5-a45d-4e7fdf08d3e3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ded7b720-d85a-4b94-8590-dbc14f44206c",
    "manifestId": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:14658/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-41194300-5bdf-4cf5-a45d-4e7fdf08d3e3",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:14658/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}