phonegap android ajax over ssl failes

I develope an App with Phonegap and Jquery Mobile. For some reasons I also need to get data from https domains. On IOS everything works perfect, but on Android I always get the following errors and the requests fails

06-17 17:16:33.890 6079-6154/de.sistecs.einlass E/chromium_net: external/chromium/net/socket/ssl_client_socket_openssl.cc:905: 
[0617/171633:ERROR:ssl_client_socket_openssl.cc(905)] handshake failed; returned -1, SSL error code 1, net_error -107

Here is a simple sample code

$(document).on("pageinit", function (event, ui) {
    $("#test").click(function () {
        $.ajax({
            type: "POST",
            url: "https://test.sistecs.de/sismedia/test.php",
            success: function (response) {
                $("#testmsg").text(response);
            }
        });
    });
});

I´ve read hundreds of posts, but didn´t find a solution to my problem. The certificate of the server https://test.sistecs.de/sismedia/test.php is valide.

Can someone help me?