前后端分离跨域问题

proxy = {    '/api': {        target: VITE_PROXY_URL, //这里配置是API的Base_URL        changeOrigin: true    },}

//ConfigureServices方法中设置允许所有来源跨域services.AddCors(options => options.AddPolicy("AllowSpecificOrigin",builder =>{    builder.AllowAnyMethod()        .AllowAnyHeader()        .SetIsOriginAllowed(_ => true) //.AllowAnyOrigin()        .AllowCredentials();}));

//Configure方法中添加中间件 => 注意，这里需要在路由中间件之后添加app.UseCors("AllowSpecificOrigin");