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/maps1/30217/manifest.json",
"isFetching": false
},
"window": {
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"companionAreaOpen": true,
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"cw-b913ca0f-ce10-4df8-9091-6dc692796ab4"
],
"draggingEnabled": true,
"highlightAllAnnotations": false,
"id": "window-b257d2ed-1b81-4baa-acfd-c924b3a2f828",
"manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/30217/manifest.json",
"maximized": false,
"rangeId": null,
"rotation": null,
"selectedAnnotations": {},
"sideBarOpen": false,
"sideBarPanel": "info",
"thumbnailNavigationId": "cw-b913ca0f-ce10-4df8-9091-6dc692796ab4"
}
}