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/maps1/24251/manifest.json",
"isFetching": false
},
"window": {
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"companionAreaOpen": true,
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],
"draggingEnabled": true,
"highlightAllAnnotations": false,
"id": "window-845b98db-f954-4a77-9010-d15cef8cf876",
"manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/24251/manifest.json",
"maximized": false,
"rangeId": null,
"rotation": null,
"selectedAnnotations": {},
"sideBarOpen": false,
"sideBarPanel": "info",
"thumbnailNavigationId": "cw-559bd1ce-9482-45fa-8929-a57be2d399aa"
}
}