エラーが出た。
Access to XMLHttpRequest at 'http://hogehoge.com' from origin 'http://fugafuga.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
http://fugafuga.com
のconfにheaderを追加
<Directory>
Header set Access-Control-Allow-Origin "http://hogehoge.com"
Header set Access-Control-Allow-Credentials true
...
</Directory>
これだけで対応できた。