diff --git a/app/lib/App/SSE/EventLoop.php b/app/lib/App/SSE/EventLoop.php
index 4c0af69..f9093c3 100644
--- a/app/lib/App/SSE/EventLoop.php
+++ b/app/lib/App/SSE/EventLoop.php
@@ -24,7 +24,6 @@ class EventLoop
             session_write_close();
         }
 
-        header('Cache-Control: no-store, must-revalidate');
         header('Content-Type: text/event-stream');
         // explicitly disable caching so varnish and other upstreams won't cache.
         header('Cache-Control: no-cache, must-revalidate');