thumbnail id for music message simply not working. (wechat is bad)

outMsg.go

 func buildSampleMusicMsg(ToUserName string) (msg string) {
 	thumbID := "AxEDlSNwJcs_0KnyiGnpAYiB1-sjITosWkU3VFsj62KuCyTQO-Fh1UH8d-pBmY1K"
 	thumbID = "JZoNKZr9gzaI5ELBnFUljujiBfIwr4CtXHkZtQMjm-sLVD5PGOU_uvsaF3oNNFjp"
+	thumbID = "5dlAsVZ8znWBuGLTjAFM8mIqapHiI0Cmazsvx4TmbsQXZk73RZz8AVnbZp6oSJZn" //jpg 200x200
+	thumbID = "e2iNEiSxCX5TV1WbFd0TQJsw84YtISnam2Q_qEXDdT4"                      //永久素材的 ID
 	url := "http://www.youtubeinmp3.com/download/get/?i=vNIuJKoAE46uz2RggRaKGFqQUVAqd0Td&e=92&progressType=button&color=008000"
 	url = "http://agobe.yt-downloader.org/download.php?id=d7be28d3a1fafa69d7e464edb8186226"
 	url = "http://www.sample-videos.com/audio/mp3/india-national-anthem.mp3"
 	url = "http://google.com/"
-	msg = buildMusicMsg(ToUserName, thumbID, "音乐标杆出", "fkd;ajf;daf说明动卡及另附;dasjfsda", url, url)
+	url = "http://m.creaders.net/travel/2017/05/11/1823175.html"
+	url = "https://biukop.com.au/music.mp3" //real mp3
+	//url = "http://mp.weixin.qq.com/s/Jo7rmlMZa_iO97eckWIzFg"
+	msg = buildMusicMsg(ToUserName, thumbID, "音乐标杆出", "测试音乐缩略土月卡其", url, url)
 	return
 }