Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/74219",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4974f4af-e13f-423b-bec1-2dc4ee46a38a",
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    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4f3a8c27-035a-4316-8ee6-2937be22a818",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/74219",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-74ff4a8e-93e3-4f2c-a8c4-24bf486e2124"
  }
}
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