HTTPD ReverseProxy ProxyPass directive ending in wrong Location header - apache

Question

HTTPD is configure as following:
#redirectder edit Location "(^http[s]?://)([^/]+)" "" port 80 to secure
<VirtualHost *:80>
ServerName mitestui02.sn.test.net
#ServerAlias server server2.domain.com server2
ServerAdmin support.p240#test.com
ErrorLog /var/log/test/iiq/appserver/apache-error.log
CustomLog /var/log/test/iiq/appserver/apache-access.log common
Redirect /identityiq/ https://mitestui02.sn.test.net/identityiq/
Redirect / https://mitestui02.sn.test.net/identityiq/
</VirtualHost>
#redirect to port 8080 on localhost
<VirtualHost *:443>
ServerName mitestui02.sn.test.net
# ServerAlias mitestui02 mitestui02.sn.test.net
ServerAdmin support.p240#test.com
SSLProxyEngine On
SSLEngine On
#allow only tls
SSLProtocol -all +TLSv1.2
SSLHonorCipherOrder on
SSLCipherSuite ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384...
SSLCertificateFile /etc/opt/test/iiq/appserver/secure/ssl/web-iiq.crt
SSLCertificateKeyFile /etc/opt/test/iiq/appserver/secure/ssl/apache-iiq.key
Redirect /identityiq/ https://mitestui02.sn.test.net/
Redirect / https://mitestui02.sn.test.net/identityiq/
ProxyRequests Off
ProxyPreserveHost On
ProxyPass /identityiq/ http://localhost:8080/identityiq/
RewriteEngine On
RewriteCond %{REQUEST_METHOD} ^OPTIONS
RewriteRule .* - [F]
<If "%{THE_REQUEST} =~ m#.jsf/?[?\s]#">
Header add X-UI-Source "mitestui02"
Header add X-UA-Compatible "IE=edge"
Header add Referrer-Policy "strict-origin-when-cross-origin"
Header add Feature-Policy "microphone 'none'; geolocation 'none'; usb 'none'; payment 'none'; document-domain 'none'; camera 'none'; display-capture 'none'; ambient-light-sensor 'none'"
Header add Permissions-Policy "accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()"
Header add Strict-Transport-Security "max-age=63072000; includeSubDomains"
Header add Content-Security-Policy "default-src 'self' 'unsafe-inline' 'unsafe-eval'"
Header add X-Content-Type-Options "nosniff"
Header always edit Set-Cookie (.*) "$1; Secure; SameSite=Strict"
Header onsuccess edit Set-Cookie (.*) "$1; Secure; SameSite=Strict"
</If>
</VirtualHost>
When I connect to the front-end URL, https://mitest.sn.test.net/ I get redirected with a response code 302 and Location header pointing to https://mitestui02.sn.test.net/identityiq/ instead of https://mitest.sn.test.net/identityiq/ .
This doesn't happen when connecting to https://mitest.sn.test.net/identity/ directly.
I have tried with different ProxyPass and ProxyPassReverse directives and also rewriting the Location header, nothing seems to help.
Thanks

Answer 1

So the issue seemed to be related to the Redirect directives.
We removed them and added the following for 443:
RewriteEngine On
RewriteCond %{HTTP:X-Forwarded-Proto} ^http$
RewriteRule ^.*$ https://%{SERVER_NAME}%{REQUEST_URI} [L,R=301,NE]
# Redirect / to /identiyiq
RedirectMatch ^/$ /identityiq
We removed them and added the following for 80:
Redirect permanent / https://mitestui02.sn.test.net/
Now it is working as expected.