diff --git a/apps/files/lib/Controller/ViewController.php b/apps/files/lib/Controller/ViewController.php
index 688db41f8b..70b878f43a 100644
--- a/apps/files/lib/Controller/ViewController.php
+++ b/apps/files/lib/Controller/ViewController.php
@@ -39,6 +39,7 @@ namespace OCA\Files\Controller;
 use OCA\Files\Activity\Helper;
 use OCA\Files\Event\LoadAdditionalScriptsEvent;
 use OCA\Files\Event\LoadSidebar;
+use OCA\Viewer\Event\LoadViewer;
 use OCP\App\IAppManager;
 use OCP\AppFramework\Controller;
 use OCP\AppFramework\Http\ContentSecurityPolicy;
@@ -281,6 +282,10 @@ class ViewController extends Controller {
 		$this->eventDispatcher->dispatch(LoadAdditionalScriptsEvent::class, $event);
 
 		$this->eventDispatcher->dispatch(LoadSidebar::class, new LoadSidebar());
+		// Load Viewer scripts
+		if (class_exists(LoadViewer::class)) {
+			$this->eventDispatcher->dispatchTyped(new LoadViewer());
+		}
 
 		$params                                = [];
 		$params['usedSpacePercent']            = (int) $storageInfo['relative'];
diff --git a/apps/files_sharing/lib/Controller/ShareController.php b/apps/files_sharing/lib/Controller/ShareController.php
index 72168b3c31..3feb98f7f0 100644
--- a/apps/files_sharing/lib/Controller/ShareController.php
+++ b/apps/files_sharing/lib/Controller/ShareController.php
@@ -41,11 +41,12 @@
 
 namespace OCA\Files_Sharing\Controller;
 
-use OC\Security\CSP\ContentSecurityPolicy;
 use OC_Files;
 use OC_Util;
+use OC\Security\CSP\ContentSecurityPolicy;
 use OCA\FederatedFileSharing\FederatedShareProvider;
 use OCA\Files_Sharing\Activity\Providers\Downloads;
+use OCA\Viewer\Event\LoadViewer;
 use OCP\AppFramework\AuthPublicShareController;
 use OCP\AppFramework\Http\NotFoundResponse;
 use OCP\AppFramework\Http\Template\ExternalShareMenuAction;
@@ -370,6 +371,7 @@ class ShareController extends AuthPublicShareController {
 			$maxUploadFilesize = $freeSpace;
 
 			$folder = new Template('files', 'list', '');
+
 			$folder->assign('dir', $shareNode->getRelativePath($folderNode->getPath()));
 			$folder->assign('dirToken', $this->getToken());
 			$folder->assign('permissions', \OCP\Constants::PERMISSION_READ);
@@ -452,6 +454,11 @@ class ShareController extends AuthPublicShareController {
 			\OCP\Util::addScript('files', 'filelist');
 			\OCP\Util::addScript('files', 'keyboardshortcuts');
 			\OCP\Util::addScript('files', 'operationprogressbar');
+
+			// Load Viewer scripts
+			if (class_exists(LoadViewer::class)) {
+				$this->eventDispatcher->dispatch(LoadViewer::class, new LoadViewer());
+			}
 		}
 
 		// OpenGraph Support: http://ogp.me/
diff --git a/apps/files_sharing/list.php b/apps/files_sharing/list.php
index 8197224af5..370ca53c6b 100644
--- a/apps/files_sharing/list.php
+++ b/apps/files_sharing/list.php
@@ -23,6 +23,7 @@
  */
 use OCA\Files\Event\LoadAdditionalScriptsEvent;
 use OCA\Files\Event\LoadSidebar;
+use OCA\Viewer\Event\LoadViewer;
 use OCP\EventDispatcher\GenericEvent;
 
 // Check if we are a user
@@ -44,4 +45,9 @@ $eventDispatcher->dispatch('\OCP\Collaboration\Resources::loadAdditionalScripts'
 $eventDispatcher->dispatch(LoadAdditionalScriptsEvent::class, new LoadAdditionalScriptsEvent());
 $eventDispatcher->dispatch(LoadSidebar::class, new LoadSidebar());
 
+// Load Viewer scripts
+if (class_exists(LoadViewer::class)) {
+	$eventDispatcher->dispatch(LoadViewer::class, new LoadViewer());
+}
+
 $tmpl->printPage();
diff --git a/apps/files_sharing/public.php b/apps/files_sharing/public.php
index b72d3a9dd9..1fcdf2fe50 100644
--- a/apps/files_sharing/public.php
+++ b/apps/files_sharing/public.php
@@ -27,7 +27,7 @@ $urlGenerator = \OC::$server->getURLGenerator();
 $token = isset($_GET['t']) ? $_GET['t'] : '';
 $route = isset($_GET['download']) ? 'files_sharing.sharecontroller.downloadShare' : 'files_sharing.sharecontroller.showShare';
 
-if($token !== '') {
+if ($token !== '') {
 	$protocol = \OC::$server->getRequest()->getHttpProtocol();
 	if ($protocol == 'HTTP/1.0') {
 		http_response_code(302);