Array splits itself when the elements inside it pass 100 during the api post

Question

I’m trying to post for my api but when the amount of items in my array exceeds 100 it splits up like this:

But my api only accepts this array when it gets like this:

What I should do for the array not to split?

Call code

try {
    $http({
        url: $rootScope.raiz_ws + "/xxxx/Gravar?parametro=" + $scope.pesq.parametro,
        method: "POST",
        data: { 'Itens': $scope.pesq.listpesq }
    }).then(function (response) {
        alert(response.data.mensagem);
        $scope.Pesquisar();
    });
} catch (e) {
    console.log(e);
}