Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/74396",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fb7d2705-35c9-4961-9382-cb516c1cc0e1",
      "cw-5f76c886-b7c0-4417-9884-4fdcf922d072"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-803e3649-9525-4d8f-806d-4740532d49ec",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/74396",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5f76c886-b7c0-4417-9884-4fdcf922d072"
  }
}