对接华为云Obs,上传附件报错cors平台对接华为云的obs时,上传附件报错,经排查发现是前端cors拦截报错了报错内容如下:Access to XMLHttpRequest at '华为云桶地址' from origin 'http://localhost:8080' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header