Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/28798",
    "isFetching": false
  },
  "window": {
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    "companionAreaOpen": true,
    "companionWindowIds": [
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    "highlightAllAnnotations": false,
    "id": "window-2f95e0a7-0ee6-40dc-b359-9c43e1e3739a",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/28798",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2fab16e6-53e7-4c2b-ad3e-d2eea570a124"
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}