TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:4710/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b8064996-9c9e-4541-89f6-4f1c21315e2e",
      "cw-6e9f4d05-8ef5-48cb-a914-bd410bcc52fc"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-cf31d62d-593e-498f-a606-506a95e70e87",
    "manifestId": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:4710/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6e9f4d05-8ef5-48cb-a914-bd410bcc52fc",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:4710/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}