diff --git a/server-application-server/resource/server/web.xml b/server-application-server/resource/server/web.xml
index a62eabb89ebd0e3e319fa06ac9cfd0f451f2fc85..ded47004ffc3a9e3ac3bf6728d0dc942c1f9cdbe 100644
--- a/server-application-server/resource/server/web.xml
+++ b/server-application-server/resource/server/web.xml
@@ -46,7 +46,7 @@
         <filter-class>ch.systemsx.cisd.common.servlet.MethodFilter</filter-class>
         <init-param>
             <param-name>allowed-methods</param-name>
-            <param-value>GET, POST</param-value>
+            <param-value>GET, POST, OPTIONS</param-value>
         </init-param>
     </filter>
     <filter-mapping>