Application link between Jira and Confluence on same server

[it rmv]

We have an apache proxy with certificates that works. But JIra and Confluence does not trust each other when trying to set up an application link. Traffic seems to go through proxy and terminate. Do I need to set up another set of certificates and point them out in server.xml? Is there a way that application link can be set without ssl?

This is how part that is about certifikate looks like in ssl.conf for apache:

<VirtualHost *:80 *:443>
SSLEngine on
ServerName jira.rmv.se:443
SSLCertificateFile "${SRVROOT}/conf/ssl/star_rmv_se.crt"
SSLCertificateKeyFile "${SRVROOT}/conf/ssl/star_rmv_se.key"
DocumentRoot "${SRVROOT}/htdocs"
CustomLog "${SRVROOT}/logs/ssl_request_jira.log" \
"%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"
<Directory "${SRVROOT}/htdocs">
Options Indexes Includes FollowSymLinks
AllowOverride AuthConfig Limit FileInfo
Require all granted
</Directory>

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}

ProxyRequests Off

<Proxy *>
Require all granted
</Proxy>

ProxyPass / http://localhost:8080/
ProxyPassReverse / http://localhost:8080/
</virtualhost>

<VirtualHost *:80 *:443>
SSLEngine on
ServerName confluence.rmv.se:443
SSLCertificateFile "${SRVROOT}/conf/ssl/star_rmv_se.crt"
SSLCertificateKeyFile "${SRVROOT}/conf/ssl/star_rmv_se.key"
DocumentRoot "${SRVROOT}/htdocs"
CustomLog "${SRVROOT}/logs/ssl_request_confluence.log" \
"%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"
<Directory "${SRVROOT}/htdocs">
Options Indexes Includes FollowSymLinks
AllowOverride AuthConfig Limit FileInfo
Require all granted
</Directory>

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}

ProxyRequests Off

<Proxy *>
Require all granted
</Proxy>

ProxyPass /synchrony http://<internal_domain>:8091/synchrony
<Location /synchrony>
Require all granted
RewriteEngine on
RewriteCond %{HTTP:UPGRADE} ^WebSocket$ [NC]
RewriteCond %{HTTP:CONNECTION} Upgrade$ [NC]
RewriteRule .* ws://<internal_domain>:8091%{REQUEST_URI} [P]
</Location>

ProxyPass / http://localhost:8090/
ProxyPassReverse / http://localhost:8090/
<Location />
Require all granted
</Location>
</virtualhost>

# End SNI Demonstration Config

Thankful for suggestions.

All best!

Maria