Index: web/testserver/README
===================================================================
--- web/testserver/README	(revision 5532)
+++ web/testserver/README	(revision 5533)
@@ -44,3 +44,13 @@
 
 The node_modules subdirectory can be deleted manually.
 No other artifacts are created.
+
+
+Known problems
+--------------
+
+The testserver doesn't handle properly SIGSTOP/SIGCONT.
+It doesn't always stop properly and may be unable to reopen the server port.
+It's not clear though whether it is a problem with node itself or with the
+express framework.
+