调用云函数返回报错....

用的是示例中的代码
class Program
{
static void Main(string[] args)
{
Cloud cloud = new Cloud().SetHooks().UseLog();
cloud.UseFunction();
cloud.Start(args);
}
}

public class HelloSample
{
[EngineFunction("Hello")]
public static string Hello([EngineFunctionParameter("text")]string text)
{
return $"Hello, {text}";
}
}

前端
var paramsJson = {
text: "夏洛特烦恼"
};
this.AV.Cloud.run('Hello', paramsJson).then(function (data) {
// 处理结果
console.log("云函数测试:"+data);
}, function (err) {
console.log("云函数错误:"+err);
// 处理报错
});

云函数错误:TypeError: Cannot read property 'result' of null

看应用日志
[2020-02-18T06:41:55.911044869Z][instance:web1] 200 {"result":"Hello, 夏洛特烦恼"} 是有这条的

可以发下这个报错的完整异常调用栈么?看下出错在哪一行。

Simulator: D/jswrapper (149): JS: %cleancloud:request %cresponse(%d) %d %O %o%c +399ms color: #3333CC color: inherit 0 200 {"result":"HelloAA夏洛特烦恼"} [object Object] color: #3333CC
Simulator: D/jswrapper (130): JS: 云函数错误:TypeError: Cannot read property 'result' of null
Simulator: D/jswrapper (643): XMLHttpRequest_finalize, 05981BB0 ...

如果是web会出现
Access to XMLHttpRequest at 'https://ksoweq8j.lc-cn-n1-shared.com/1.1/functions/Hello' from origin 'http://localhost:7456' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. [http://localhost:7456/]

是不是跨域问题