Vaadin, Apache Httpd and Virtual directories
To run an Vaadin application behind an Apache Httpd server using a virtual directory use this settings:
<Proxy *>
Order deny,allow
Allow from all
</Proxy>
ProxyPass /iot1 http://localhost:8081
ProxyPassReverse /iot1 http://localhost:8081
ProxyPass /VAADIN http://localhost:8081/VAADIN
ProxyPass /vaadinServlet/UIDL http://localhost:8081/vaadinServlet/UIDL
ProxyPreserveHost on