每次在不同机器上进行前后端交互都入坑,心想自己机器测都可以怎么连接的时候都连接不上,原来是每次自己的都忘记跨域请求!!!
特此记录下,以防再入坑!
跨域相关的两个header属性我都没有找到相关的定义,下面直接告诉大家
1是Access-Control-Allow-Origin 允许的域
2是Access-Control-Allow-Headers 允许的header类型
//设置跨域访问
app.
all(
'*',
function(
req,
res,
next) {
res.
header(
"Access-Control-Allow-Origin",
"*");
res.
header(
"Access-Control-Allow-Headers",
"Origin, X-Requested-With, Content-Type, Content-Length,
Authorization, Accept,yourHeaderFeild");
res.
header(
"Access-Control-Allow-Methods",
"PUT,POST,GET,DELETE,OPTIONS");
res.
header(
"X-Powered-By",
' 3.2.1')
res.
header(
"Content-Type",
"application/json;charset=utf-8");
next();
});