cordova-plugin-advanced-http: JSON request with array data is not working on Android (JSON error)

Hello, I am getting JSON error when I would like to send array data in post request

        this.http.setDataSerializer("json");
        this.http
            .post(
            "https://localhost/api/create",
            [{ test: 1 }, { test: 2 }],
            {
                "Accept": "application/json",
                "Content-Type": "application/json"
            }
            )
            .then((response) => {
                console.log('response', response);
            })
            .catch((error) => {
                console.log('error', error);
            })
        ;

I try somethink like below but still same error JSON error

this.http.setDataSerializer("urlencoded");

        this.http
            .post(
            "https://localhost/api/create",
            JSON.stringify([{ test: 1 }, { test: 2 }]),
            {
                "Accept": "application/json",
                "Content-Type": "application/json"
            }
            )
            .then((response) => {
                console.log('response', response);
            })
            .catch((error) => {
                console.log('error', error);
            })
            ;

Plagin cordova-plugin-advanced-http 1.5.10 "Advanced HTTP plugin"

How can I send json request with array data?

Thanks!