Error fetching data with a POST request from React Native App to PHP Api

I’m creating an app that must have a database in an online server.
On this server there this PHP Api:

<?php
    mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);

    $request_service = $_POST["service"];
    
    $conn = getConnection();
    
    $rows = array();
    $query_result;

    switch ($request_service) {
    case "getTestOne":
        $query_result = getTestOne($conn);
        break;
    case "getTestTwo":
        $query_result = getTestTwo($conn);
        break;
    }
    
    //echo $query_result;
    echo parseResultToJson($query_result);
    
    $conn->close();
    
    function parseResultToJson($result) {
        while($r = mysqli_fetch_assoc($result)) {
        $returnRows[] = $r;
        }
        return json_encode($returnRows);
    }  
    
    function getConnection() {
        // the * are there for privacy, in the real code there are the real data
    $servername = "******";
        $username = "******";
        $password = "******";
        $database = "******";
        
        $o_conn = new mysqli($servername, $username, $password, $database);
        if ($o_conn -> connect_errno) {
            echo "Failed to connect to MySQL: " . $o_conn -> connect_error;
            exit();
        } 
        return $o_conn;
    }
    
    function getTestOne($i_conn) {
        $result = $i_conn->query("SELECT * FROM Test;");
        return $result;
    }
    
    function getTestTwo($i_conn) {
        $result = $i_conn->query("SELECT * FROM TestTwo;");
        return $result;
    }
?>

I try to send a POST request from my React Native app:

import { Component } from "react"
import { Button, Text, View } from "react-native";

export default class HomePage extends Component {

    constructor(props) {
        super(props);
        this.state = {

        }
        this.fetchData = this.fetchData.bind(this)
    }

    componentDidMount() {
    }

    fetchData() {    
        fetch("https://homey.altervista.org/testApi.php", {
            method: "POST",
            mode: "no-cors",
            headers: {
                "Accept": "application/json",
                "Content-type": "application/json"
            },
            body: JSON.stringify({
                service: "getTestOne"
            })
        })
        .then((response) => console.log((response)))
        .catch((error) => console.log("ERROR: " + error));
    }

    render() {
        return (
            <View>
                <Button
                    title={"Fetch Data"}
                    style={{width: 300, height: 100}}
                    onPress={this.fetchData}
                />
            </View>
        )
    }
}

but the response is:

{
    "type": "default",
    "status": 200,
    "ok": true,
    "statusText": "",
    "headers": {
        "map": {
            "content-type": "text/html; charset=UTF-8",
            "date": "Fri, 06 Oct 2023 09:10:07 GMT",
            "server": "Apache",
            "vary": "Accept-Encoding"
        }
    },
    "url": "https://homey.altervista.org/testApi.php",
    "bodyUsed": false,
    "_bodyInit": {
        "_data": {
            "size": 4,
            "offset": 0,
            "blobId": "f8086baf-3a86-4b59-b07b-531a884f082d",
            "__collector": {}
        }
    },
    "_bodyBlob": {
        "_data": {
            "size": 4,
            "offset": 0,
            "blobId": "f8086baf-3a86-4b59-b07b-531a884f082d",
            "__collector": {}
        }
    }
}

Using Postman it works perfectly:

I tried to convert the response using response.json() or response.blob() but it doesn’t work.