XMLHttpRequest cannot load https://ra8.cn/index.php/bbs/wxapp.index.html?type=reply&;page=1. Request header field wxappid is not allowed by Access-Control-Allow-Headers in preflight response.

(index):1 XMLHttpRequest cannot load https://ra8.cn/index.php/qun/wxapp.index.html?type=star. Request header field wxappid is not allowed by Access-Control-Allow-Headers in preflight response.

(index):1 XMLHttpRequest cannot load https://ra8.cn/index.php/p/uniapp_bbs-config-index.html. Request header field wxappid is not allowed by Access-Control-Allow-Headers in preflight response.

(index):1 XMLHttpRequest cannot load https://ra8.cn/index.php/bbs/wxapp.sorts.html?top_type=1. Request header field wxappid is not allowed by Access-Control-Allow-Headers in preflight response.

     这个什么意思