bug: makeWebRequest sends Chars as bytes(numeric) on real device

When I use Chars as keys or values of the params dictionary:

var params = {
    'a' => 1,
    'b' => 'foo',
    "bar" => 'c'
};
var options = {
    :method => Communications.HTTP_REQUEST_METHOD_GET
};
Communications.makeWebRequest(url, params, options, method(:callback));

In real device (fenix6 25.00) it sends: ?97=1&98=foo&bar=99 instead of ?a=1&b=foo&bar=c (as it does in the simulator)

SDK: 4.1.7