Problem:
When using JIRAPORTLET and JIRAISSUES macros in Confluence whith both JIRA and Confluence being secured with HTTPS (using client certificates) the problem is that these portlets are not working ( a known problem) . A workaround would be (at least when both JIRA and Confluence are installed on the same machine) to configure the Apache for localhost calls to work without the client certificates (without SSL).
Therefore the JIRAPORTLET can be used with an adapted URL parameter using http://localhost/..
BUT the problem now is that all links in the displayed portlet are generated with this 'wrong' localhost domain!

Solution:
The portlet generates all links with the base URL set in the general configuration of the called JIRA instance!

Currently this is a real crtical issue in our customer project that this is not working!