diff --git a/api/src/Framework.php b/api/src/Framework.php
index ef149a0a2b..6cb7c28613 100644
--- a/api/src/Framework.php
+++ b/api/src/Framework.php
@@ -603,11 +603,12 @@ abstract class Framework extends Framework\Extra
 	 *
 	 * @param string $username =null username for regular basic Auth
 	 * @param string $password =null password --------- " ----------
+	 * @param array $opts =array() further params for http(s) context, eg. array('timeout' => 123)
 	 * @return resource|null context to use with file_get_context/fopen or null if no proxy configured
 	 */
-	public static function proxy_context($username=null, $password=null)
+	public static function proxy_context($username=null, $password=null, array $opts = array())
 	{
-		$opts = array(
+		$opts += array(
 			'method' => 'GET',
 		);
 		if (!empty($GLOBALS['egw_info']['server']['httpproxy_server']))
diff --git a/calendar/inc/class.calendar_holidays.inc.php b/calendar/inc/class.calendar_holidays.inc.php
index 0b465cf5d6..f508c8ee8e 100644
--- a/calendar/inc/class.calendar_holidays.inc.php
+++ b/calendar/inc/class.calendar_holidays.inc.php
@@ -153,7 +153,7 @@ class calendar_holidays
 			error_log("No holiday iCal for '$country'!");
 			return array();
 		}
-		if (!($f = fopen($url, 'r')))
+		if (!($f = fopen($url, 'r', false, Api\Framework::proxy_context())))
 		{
 			error_log("Can NOT open holiday iCal '$url' for country '$country'!");
 			return array();
@@ -181,12 +181,8 @@ class calendar_holidays
 
 		if (!isset($urls))
 		{
-			$ctx = stream_context_create(array(
-				'http'=> array(
-					'timeout' => 1,
-				)
-			));
-			if (!($json = file_get_contents(self::EGW_HOLIDAY_URL.self::HOLIDAY_PATH, false, $ctx)))
+			if (!($json = file_get_contents(self::EGW_HOLIDAY_URL.self::HOLIDAY_PATH, false,
+				Api\Framework::proxy_context(null, null, array('timeout' => 1)))))
 			{
 				$json = file_get_contents(EGW_SERVER_ROOT.self::HOLIDAY_PATH);
 			}