Kannel HTTP GET works, but HTTP POST fails

[Kasper Nielsen]

This is my NodeJS (request-promise) for sending SMS via HTTP GET:

var options = {
    method: 'GET',
    uri: 'http://127.0.0.1:13002/cgi-bin/sendsms',
    qs: {
        username: 'foo',
        password: 'bar',
        to: '127883327304',
        from: '12488331359',
        text: 'Hi
    }
};

This works, but changing to HTTP POST fails.

var options = {
    method: 'POST',
    uri: 'http://127.0.0.1:13002/cgi-bin/sendsms',
    form: {
        username: 'foo',
        password: 'bar',
        to: '127883327304',
        from: '12488331359',
        text: 'Hi
    }
};

Getting      body: 'Authorization failed for sendsms' } }