JavaScript shows error for Laravel API that return values correctly

I have a Laravel API that under a request gets some info from the database and returns a JSON. If I run it with postman everything works but when I do it through vanilla js I get the results correctly too but the js try/catch block determines it failed and skips the try code block.

This is the Laravel API method that returns the JSON:

public function getYearsModel(ModelVehicles $model){

    $generations = \DB::table('generations')->where('model_id', $model->id)->get();

    $start = $generations->min('starts');
    $end = $generations->max('end');

    $years = [];

    for($start; $start <= $end; $start++){
        array_push($years, "{'id': $start, 'name': $start}");
    }

    return response()->json(
        [$years]
    );
}

This is the js script:

const getYears = async (event) => {
    try {
        const years = await getApiResults(`url/${event.target.value}`);

        if(years.length > 0) {
            deleteOptions('year_select');
            addOptions('year_select');
            enableSelect('year_select');
        } else {
            deleteOptions('year_select');
            disableSelect('year_select');
        }
    } catch (error) {
        alert('Error when retrieving years');
    }
}

const getApiResults = async (url) => {
    const response = await fetch(url);
    return await response.json();
}

On the network tab, I see it returns the JSON with the correct values also tinker returns correct values when I run the same query.

via Chebli Mohamed