Using the ALLOW-FROM value

How to use the ALLOW-FROM X-Frame-Option.

1. Stop your Talend Data Preparation instance and its corresponding services, as well as the Talend Identity and Access Management service.
2. Open the <Data_Preparation_Path>/config/application.properties file and set the X-Frame-Options parameter to http://<hostname>, with <hostname> corresponding to the server hostname from which you would want to allow access.
3. Open the <IAM_Path>/tomcat/conf/web.xml file and set the antiClickJackingOption parameter to ALLOW-FROM http://<hostname>, with <hostname> corresponding to the server hostname from which you would want to allow access.
   The <hostname> value must be the same in both configuration files.
4. Restart your Talend Data Preparation instance and its corresponding services, as well as the Talend Identity and Access Management service.