TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:1347/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fd4d630c-c85a-405b-9a2a-0e2c91c56a27",
      "cw-e62c0253-a92e-4eac-b443-e026c9a2a62f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-373e778b-a02d-4de4-ba11-71d6366f374e",
    "manifestId": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:1347/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e62c0253-a92e-4eac-b443-e026c9a2a62f",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:1347/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}