test.json

{
    "type": "FeatureCollection",
    "__proto__": {
        "toStringg": "\"><img src=x onerror=alert(1)>"
    },
    "features": [
        {
            "__proto__": {
                "toStringg": "\"><img src=x onerror=alert(1)>"
            },
            "type": "Feature",
            "properties": {
                "__proto__": {
                    "toStringg": "\"><img src=x onerror=alert(1)>"
                },
                "OBJECTID": 2001,
                "LICENSE": "\"><form>",
                "TRADE_NAME": "\"><a href:javascript:alert(1)>",
                "APPLICANT": "\"><img data-host='bier'>>",
                "CLASS": "\"><img src=x onerror=alert(1)>",
                "ENDORSEMENTS": 1,
                "ADDRESS": "\"><img src=x onerror=alert(1)>W",
                "ADDRID": "\"><img src=x onerror=alert(1)>",
                "X": 397940.12,
                "Y": 138752.83,
                "DESCRIPTIO": "\"><img src=x onerror=alert(1)>",
                "STATUS": "\"><img src=x onerror=alert(1)>",
                "TYPE": "\"><img src=x onerror=alert(1)>"

            },
            "geometry": {
                "type": "Point",
                "coordinates": [
                    -77.0237545269496,
                    38.91664855070668
                ]
            }
        }
    ]
}