CasperJs：我如何提交一份有行动的表格=＆＃34;＆＃34; （没有动作）

Question

在casperjs文档中的示例代码中，提交表单是通过以下方式：

var loginFormSelector = 'form[name="loginForm"]';
casper.waitForSelector(loginFormSelector,
        function() {
            this.echo("Login page loaded. Entering in username and password");
            this.fillSelectors(loginFormSelector, {
                'input#username': username,
                'input#password': password'
            }, true);
        },
        function() {
            this.die("Login form not found");
        });

我的错误日志

Login page loaded. Entering in username and password
[info] [remote] attempting to fetch form element from selector: 'form[name="loginForm"]'
[debug] [remote] Set "username" field value to usrname
[debug] [remote] Set "password" field value to ***********
[info] [remote] submitting form to unknown, HTTP POST
[info] [phantom] Step anonymous 4/5: done in 14362ms.