Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/39721",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-86f1ffc5-3de4-441e-a0d4-ed044ba93f17",
      "cw-c0d1aaf6-1731-4f24-aec4-ed4bbf589864"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a12a1b00-dc91-4767-b798-0e9f6fbf3b5d",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/39721",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c0d1aaf6-1731-4f24-aec4-ed4bbf589864"
  }
}
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