javascript - 飞行前响应中的访问控制允许 header

Question

我明白了:

XMLHttpRequest cannot load http://62.244.120.89:9000/api/v2/content/categories/sl_1-main/. Request header field HTTP_LANGUAGE_CODE is not allowed by Access-Control-Allow-Headers in preflight response.

我找到了问题:Request header field Access-Control-Allow-Headers is not allowed by itself in preflight response

在一个答案中，他们建议添加响应 header

response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Credentials", "true");
response.setHeader("Access-Control-Allow-Methods", "GET,HEAD,OPTIONS,POST,PUT");
response.setHeader("Access-Control-Allow-Headers", "Access-Control-Allow-Headers, Origin,Accept, X-Requested-With,

Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers");

我是否在客户端的服务器上执行此操作？

Answer 1

您可以在向其发出请求的服务器中设置响应 header 。