关于微信自定义分享的链接、标题、描述、图片都未生效问题详解

之前写了一篇关于微信js-sdk分享详解及demo实例（图文并茂很详细）的文章

很多人有这样的问题，为什么debug都返回ok但微信自定义分享的链接、标题、描述、图片却都未生效

先附上一段标准且通俗易懂的ajax（获取微信JSAPI的配置参数）

var urls = window.location.href;
$.ajax({
type: "GET",
url: Global.path+ Global.contextPath +'/getJsApiConfig?url='+urls,
dataType: "json",
contentType: "text/html;charset=UTF-8",
beforeSend : function(){
loading.show();
},
success: function(rs){
if(rs.code == 0){

wx.config({
debug: false,
appId: rs.data.appId,
timestamp: rs.data.timestamp,
nonceStr: rs.data.nonceStr,
signature: rs.data.signature,
jsApiList: [
'checkJsApi',
'onMenuShareTimeline',
'onMenuShareAppMessage'
]
});
var shareTitle = "使用充电服务，还有广告奖励金等你拿！";
var shareDesc = "帮你店铺服务升级";
var shareLink =location.origin + '/' +Global.path + "/page/index"+ pageExt;
var shareImgUrl =location.origin + '/' +Global.path + "/static/images/logo.jpg?v=29dd16b52d";
wx.ready(function () {
//分享给朋友
wx.onMenuShareAppMessage({
title: shareTitle,
desc: shareDesc,
link: shareLink,
imgUrl: shareImgUrl,
success: function (res) {
showTip('朋友分享成功');
},
fail: function (res) {
alert(JSON.stringify(res));
}
});
//分享到朋友圈
wx.onMenuShareTimeline({
title: shareTitle,
desc: shareDesc,
link: shareLink,
imgUrl: shareImgUrl,
success: function (res) {
showTip('朋友圈分享成功');
},
fail: function (res) {
alert(JSON.stringify(res));
}
});
})

}
},
complete:function(){
loading.hide();
},
error: function(rs) {
showTip(rs.msg);
}
});

分享的链接、标题、描述、图片都未生效的主要原因是link和imgUrl都需要补全前半部分（location.origin）。

如上代码的：

var shareLink =location.origin + ‘/’ +Global.path + “/page/index”+ pageExt;

var shareImgUrl =location.origin + ‘/’ +Global.path + “/static/images/logo.jpg?v=29dd16b52d”;