SyntaxError: Unexpected token '<', "<!DOCTYPE "... is not valid JSON
{
"manifest": {
"error": "SyntaxError: Unexpected token '<', \"<!DOCTYPE \"... is not valid JSON",
"id": "https://digital.libraries.psu.edu/iiif/info/maps1/27756/manifest.json",
"isFetching": false
},
"window": {
"collectionIndex": 0,
"companionAreaOpen": true,
"companionWindowIds": [
"cw-80b27a44-5577-46c4-8d74-ec40326cff41",
"cw-8a7e1074-0a59-4ddc-8674-59dd3d31fcad"
],
"draggingEnabled": true,
"highlightAllAnnotations": false,
"id": "window-749717f3-6e20-42f1-b190-5905c242c4c7",
"manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/27756/manifest.json",
"maximized": false,
"rangeId": null,
"rotation": null,
"selectedAnnotations": {},
"sideBarOpen": false,
"sideBarPanel": "info",
"thumbnailNavigationId": "cw-8a7e1074-0a59-4ddc-8674-59dd3d31fcad"
}
}