Mirador viewer

SyntaxError: Unexpected end of JSON input

{
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    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/3578402",
    "isFetching": false
  },
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    "maximized": false,
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    "rotation": null,
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    "sideBarPanel": "info",
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}