OpenLayers with GeoJSON cannot display feature properties

[zespadanal]

Hi there!

I have been trying (unsuccessfully) for the past two days to display a GeoJSON feature collection on a base map, using OpenLayers. I can see the shapes of the GeoJSON, but I cannot see any properties.

I have this example geojson:

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [-9.3587871, 38.691716],
            [-9.3587871, 38.6780467],
            [-9.341105, 38.6780467],
            [-9.341105, 38.691716],
            [-9.3587871, 38.691716]
          ]
        ]
      },
      "properties": {
        "propertyUrl": "http://localhost:8080/api/resources/asdij1o2",
        "propertyA": "2026-01-10",
        "propertyB": 800,
      },
      "id": 3
    }
  ]
}

As shown in the image below, I can see the shape, but I cannot see any property of the Feature (propertyUrl, propertyA, etc).

I followed the guide (adding resource_proxy and geo_view to ckan.plugins, and also have
ckan.views.default_views = image_view datatables_view geo_view

And I have also this on ckan.ini:

ckanext.spatial.common_map.type = custom
ckanext.spatial.common_map.custom.url = https://tile.openstreetmap.org/{z}/{x}/{y}.png
ckanext.spatial.common_map.custom.attribution = " Map tiles & Data by OpenStreetMap, under CC BY SA."
ckanext.geoview.ol_viewer.formats = geojson

I cannot find anything else in the documentation.

Would appreciate any guidance, if possible.