宝塔面板的nginx直接添加，解决了
location / {
if ($request_method = 'OPTIONS') {
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Methods GET,POST,PUT,DELETE,OPTIONS;
#其他头部信息配置，省略...
return 204;
}
add_header Access-Control-Allow-Origin *;
}
