also match ie11 with Request::USER_AGENT_IE

lib/private/appframework/http/request.php

@@ -42,7 +42,7 @@ use OCP\Security\ISecureRandom;
  */
 class Request implements \ArrayAccess, \Countable, IRequest {
 
-	const USER_AGENT_IE = '/MSIE/';
+	const USER_AGENT_IE = '/(MSIE)|(Trident)/';
 	const USER_AGENT_IE_8 = '/MSIE 8.0/';
 	// Android Chrome user agent: https://developers.google.com/chrome/mobile/docs/user-agent
 	const USER_AGENT_ANDROID_MOBILE_CHROME = '#Android.*Chrome/[.0-9]*#';