Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/39665",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ce355ec4-1ca9-4144-b9fa-504e3e148504",
      "cw-235fee28-497e-421d-8ff5-acd904904cc2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1201ebef-e292-4b10-b7f6-9ea81128bad7",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/39665",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-235fee28-497e-421d-8ff5-acd904904cc2"
  }
}