TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "http://cdm17413.contentdm.oclc.org/iiif/2/p17413coll1:735/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-58880dae-7753-4848-9d25-8b4c22420d45",
      "cw-6f26c2a5-eb0e-4f6a-9b30-c3b18d6576f2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ff81a823-6ba7-45d6-afd4-3ef493384700",
    "manifestId": "http://cdm17413.contentdm.oclc.org/iiif/2/p17413coll1:735/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6f26c2a5-eb0e-4f6a-9b30-c3b18d6576f2",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "http://cdm17413.contentdm.oclc.org/iiif/2/p17413coll1:735/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}