By default, the proxy is closed to any host except the domain on which the gadget server is installed.
To modify the filtering of domain names, modify the portal.war/WEB-INF/conf/common/common-configuration.xml file.
The default configuration is set as below:
<component>
<key>org.exoplatform.web.security.proxy.ProxyFilterService</key>
<type>org.exoplatform.web.security.proxy.ProxyFilterService</type>
<init-params>
<values-param>
<!-- The white list -->
<name>white-list</name>
<!-- Accept anything not black listed -->
<value/>
</values-param>
<values-param>
<name>black-list</name>
<value/>
</values-param>
</init-params>
</component>