Bug on IPv6 numeric addresses treatment

[cralli]

When configuring the Keyrock PEP-proxy to listen to outbound v6 queries and forward them over v6 too towards a backend component this way:

• Server.js file: app.listen(80, "::");
• Config.js file: config.app_host = '::1’;

The PEP-proxy correctly attends the query over v6. However, when forwarding (again over v6) to the component, the service URL is not correctly provided (looks like ":" characters are misleading for that parsing process).

Traces for a ContextBroker GE as a backend component are:

400
Bad Request

service '/::1/version' not found

The problem does not happen if we configure the IPv6 component endpoint with a valid FQDN. For instance, the following one works fine in a host where /etc/hosts has the line "localhost6 ::1":

• Server.js file: app.listen(80, "::");
• Config.js file: config.app_host = 'localhost6’;

Thanks for your support!