A solution for CORS enabling:
Install Jenkins-CORS plugin.
Proxify behind Apache with CORS enabled
Example for Sonar :
NameVirtualHost *:80
<VirtualHost *:80>
ProxyPreserveHost On
Header set Access-Control-Allow-Origin "*"
Header set Access-Control-Allow-Methods' '*'
ProxyPass /sonar http://localhost:9000/sonar
ProxyPassReverse /sonar http://localhost:9000/sonar
ServerName localhost
</VirtualHost>