1 files changed, 8 insertions, 0 deletions
diff --git a/boot.php b/boot.php
index a51c945f2..fcf6af8da 100644
--- a/boot.php
+++ b/boot.php
@@ -2460,6 +2460,14 @@ function construct_page() {
 		header("X-Content-Type-Options: nosniff");
 	}
 
+	if (isset(App::$config['system']['perm_policy_header']) && App::$config['system']['perm_policy_header']) {
+		header("Permissions-Policy: " . App::$config['system']['perm_policy_header']);
+	}
+	else {
+		// opt-out this site from federated browser surveillance
+		header("Permissions-Policy: interest-cohort=()");
+	}
+
 	if(isset(App::$config['system']['public_key_pins'])) {
 		header("Public-Key-Pins: " . App::$config['system']['public_key_pins']);
 	}