在制作oneday-music-player的时候要使用ajax向百度音乐的api发送请求,然后出现了XMLHttpRequest cannot load 'http://....' . No 'Access-Control-Allow-Origin' header is present on the request resource. Origin 'http://....' is therefore not allowed access,经过搜索发现是受到了同源策略的影响而导致的跨域问...