#region 支持跨域请求
context.Response.ClearHeaders();
string origin = context.Request.Headers["Origin"];
context.Response.AppendHeader("Access-Control-Allow-Origin",
string.IsNullOrEmpty(origin) ? "*" : origin);
string requestHeaders = context.Request.Headers["Access-Control-Request-Headers"];
context.Response.AppendHeader("Access-Control-Allow-Headers",
string.IsNullOrEmpty(requestHeaders) ? "*" : requestHeaders);
context.Response.AppendHeader("Access-Control-Allow-Methods", "POST, OPTIONS");
#endregion
比如在登录页面允许跨域请求
Paste_Image.png
