Мірадор - viewer

SyntaxError: Unexpected token '<', "<!DOCTYPE "... is not valid JSON

{
  "manifest": {
    "error": "SyntaxError: Unexpected token '<', \"<!DOCTYPE \"... is not valid JSON",
    "id": "/api/digital_items/126215/2/manifest.json/",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-133b6255-4eba-493e-aa6b-407b6bcc25aa",
      "cw-10d80d52-e278-40da-af04-55729d1f8e40"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5abd2308-baba-4434-96d7-8c2bd392de1e",
    "manifestId": "/api/digital_items/126215/2/manifest.json/",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "annotations",
    "thumbnailNavigationId": "cw-10d80d52-e278-40da-af04-55729d1f8e40",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "/api/digital_items/126215/2/manifest.json/",
    "canvasIndex": 0
  }
}