Preview

Query parameter ?preview=true on resource or page GET includes unpublished content.

Who can

Identity	Condition
Anonymous	Denied
Session	MODX permission view_unpublished
API key / OAuth	Scope preview and the key user's ACL

curl -s 'https://example.com/api/v1/resources/12?preview=true' \
  -H 'Authorization: Bearer mxh_...'

Context and field policy still apply. Hidden fields are not returned.

Cache

Preview responses use Cache-Control: private, no-store. Do not cache on a CDN. See HTTP caching.

See also

• Resources and Pages
• Scopes and ACL