TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:5704/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1eaf9ac0-bbcd-41a1-8dc3-bf1207883e13",
      "cw-585ab3d8-9245-4691-b98f-6aed9c7ff846"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a78a9f31-0d2d-4692-8980-9b56359ce7ec",
    "manifestId": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:5704/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-585ab3d8-9245-4691-b98f-6aed9c7ff846",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:5704/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}