【解决办法】 先在最前面加一下这个，后面研发内部会修复这个问题的：
L.supermap.FetchRequest._getWithCredentials= function (options) {
if(L.supermap.CommonUtil.isInTheSameDomain(options.url)){
return 'same-origin';
}
if (options.withCredentials === true) {
return 'include';
}
if (options.withCredentials === false) {
return 'omit';
}
return 'same-origin';
},
