diff --git a/appinfo/info.xml b/appinfo/info.xml
index cfb2310..f71bb8f 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -31,7 +31,7 @@ Additionally, the community document server only supports running on x86-64 Linu
 	<screenshot>https://raw.githubusercontent.com/nextcloud/documentserver_community/master/screenshots/main.png</screenshot>
 	<screenshot>https://raw.githubusercontent.com/nextcloud/documentserver_community/master/screenshots/new.png</screenshot>
 	<dependencies>
-		<nextcloud min-version="21" max-version="27"/>
+		<nextcloud min-version="21" max-version="28"/>
 	</dependencies>
 
 	<background-jobs>
diff --git a/lib/Controller/StaticController.php b/lib/Controller/StaticController.php
index 38af7d7..a902fb8 100644
--- a/lib/Controller/StaticController.php
+++ b/lib/Controller/StaticController.php
@@ -96,8 +96,6 @@ public function webApps(string $path) {
 				$rawContent = file_get_contents($localPath);
 				$content = str_replace('__HINT__', addcslashes($hint, "'"), $rawContent);
 				return $this->createFileResponseWithContent($localPath, $content, false);
-			} elseif ($this->sessionManager->getSessionCount() >= 20) {
-				$localPath = __DIR__ . '/../../js/sessionlimit.js';
 			}
 		}
 
diff --git a/lib/FileResponse.php b/lib/FileResponse.php
index 4d4a4a0..d991092 100644
--- a/lib/FileResponse.php
+++ b/lib/FileResponse.php
@@ -37,7 +37,7 @@ public function __construct($data, int $length, int $lastModified, string $mimeT
 		$this->data = $data;
 		$this->name = $name;
 		$this->setStatus($statusCode);
-		$this->setHeaders(array_merge($this->getHeaders(), $headers));
+		$this->setHeaders($headers);
 		$this->addHeader('Content-Length', $length);
 		$this->addHeader('Content-Type', $mimeType);
 
diff --git a/lib/XHRCommand/AuthCommand.php b/lib/XHRCommand/AuthCommand.php
index 4baaf60..2d1d58a 100644
--- a/lib/XHRCommand/AuthCommand.php
+++ b/lib/XHRCommand/AuthCommand.php
@@ -32,8 +32,6 @@
 use OCA\DocumentServer\OnlyOffice\WebVersion;
 
 class AuthCommand implements ICommandHandler {
-	public const MAX_CONNECTIONS = 20;
-
 	private $changeStore;
 	private $sessionManager;
 	private $lockStore;
@@ -75,15 +73,6 @@ public function handle(array $command, Session $session, IIPCChannel $sessionCha
 
 		$participants = $this->sessionManager->getSessionsForDocument($session->getDocumentId());
 
-		if (count($participants) > self::MAX_CONNECTIONS) {
-			$sessionChannel->pushMessage(json_encode([
-				'type' => 'auth',
-				'result' => 0,
-			]));
-
-			return;
-		}
-
 		$sessionChannel->pushMessage(json_encode([
 			'type' => 'auth',
 			'result' => 1,
diff --git a/lib/XHRResponse.php b/lib/XHRResponse.php
index 6983c4a..c3bea50 100644
--- a/lib/XHRResponse.php
+++ b/lib/XHRResponse.php
@@ -41,7 +41,7 @@ public function __construct(
 		$this->type = $type;
 		$this->data = $data;
 		$this->setStatus($statusCode);
-		$this->setHeaders(array_merge($this->getHeaders(), $headers));
+		$this->setHeaders($headers);
 
 		$this->addHeader('Content-Type', 'application/javascript; charset=UTF-8');
 	}