Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/51681",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-af0a1036-bf10-4e81-a594-1740591f3028",
      "cw-576f9ef4-691c-449d-a90b-0403dc3df106"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-18661fcf-e2ae-4ee1-9e38-c13f0de38595",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/51681",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-576f9ef4-691c-449d-a90b-0403dc3df106"
  }
}