Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10504128_00777_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ea8b433c-00de-4ff3-9f70-c05e259f116b",
      "cw-38128da7-d99e-4faa-813c-2abf5880630f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d8c3b372-496d-48d9-a49e-401c9e04c84a",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10504128_00777_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-38128da7-d99e-4faa-813c-2abf5880630f",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10504128_00777_u001",
      "navDate": "1828-11-23",
      "multId": "bsbmult00000506",
      "lastSearchUrl": null
    },
    "canvasIndex": 1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10504128_00777_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}