* - Polling the outboxes for missing content?
*
* Missing parts from DFRN:
- * - Public Forum
- * - Private Forum
+ * - Public Group
+ * - Private Group
* - Relocation
*/
class ActivityPub
*/
public static function isRequest(): bool
{
+ header('Vary: Accept', false);
+
$isrequest = stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/activity+json') ||
stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/json') ||
stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/ld+json');