vssue: [Question] has been blocked by CORS policy

Environment

• Vssue Version: latest
• Platform: GitHub
• OS: Windows 10
• Browser: chrome 74

配置如下： [‘@vssue/vuepress-plugin-vssue’, { locale: ‘zh’, platform: ‘github’, owner: ‘xx’, repo: ‘xx’, clientId: ‘xx’, clientSecret: ‘xx’, proxy: url => https://api.github.com?target=${url} }]

vuepress 在本地运行没有问题，发布后报错，cors 的错误： has been blocked by CORS policy: Request header field accept is not allowed by Access-Control-Allow-Headers in preflight response.

项目发布后不能提交评论、也获取不到评论信息。（但在本地运行一切正常）