Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/14609/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-af3a4c3e-20ce-4e0f-ab58-187a82a1e060",
      "cw-b0447b41-a064-4950-a7cf-47618256c726"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1cba3b86-760e-4bfa-93d3-c9c8821e5589",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/14609/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b0447b41-a064-4950-a7cf-47618256c726"
  }
}