casperjs 如何下载图片

Question

var path="/home/stephen/WebstormProjects/tripadvisor/"

this.download(url, 'tripvisor.jpg');


[warning] [remote] getBinary(): Unfortunately, casperjs cannot make cross domain ajax requests

[error] [remote] getBinary(): Error while fetching https://ccm.ddcdn.com/ext/pho...: Error: NETWORK_ERR: XMLHttpRequest Exception 101

我下载这个图片报错，不知道如何解决，大神帮忙看看，谢谢！