跨域 跨域可以使用谷歌的插件解决:https://chrome.google.com/webstore/detail/allow-control-allow-origi/nlfbmbojpeacfghkpbjhddihlkkiljbi 或者谷歌开启允许跨域,参考 http://camnpr.com/archives/chrome-args-disable-web-security.html