TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:10740/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4b6e8004-6e83-4d61-a7db-8c4f44f1a707",
      "cw-57c99d1f-a16d-46fa-9edb-e1c80214b96e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-596fd860-f034-423c-8ee8-4291ce5a35e2",
    "manifestId": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:10740/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-57c99d1f-a16d-46fa-9edb-e1c80214b96e",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:10740/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}