jquery + ajax + json + fill dropdown list not working

Answer 1

Your JSON data is invalid. You can't have multiple instances of the same property in an object.

You probably want:

[ 
    {
        "name": "Country1"
    },
    {
        "name": "Country1"
    },
    {
        "name": "Country1"
    }
]

Or even:

[ "Country1", "Country1", "Country1" ]

You can loop over it as per the example for for in the spec.