Show custom error pages while redirecting to HTTPS on Apache 2.2

[Aitor González <a.gonzalez@xxxxxxxx>]

Using Apache 2.2, I am trying to redirecting HTTP requests to HTTPS requests to a Tomcat 6 server and that works fine.

But I am trying to redirect errors to custom error pages and while that works as long as I don't redirect the HTTP requests to HTTPS requests, it doesn't work when I redirect.

This is the configuration I am currently using:

 # gestion Stofi
<VirtualHost 10.5.129.42:80>
    #formamos el acceso por https
    RewriteEngine On
    RewriteCond %{HTTPS} off
    RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}

    ServerAlias gestionfico.media-saturn.com

    DirectoryIndex /Stofi

    ProxyPass /Stofi ajp://10.5.129.42:8009/Stofi
    ProxyPassReverse /Stofi ajp://10.5.129.42:8009/Stofi

    ErrorLog "logs/Stofi-apache-error.log"
    CustomLog "logs/Stofi-apache-access.log" common      

    #ErrorLog "Z:/Stofi_Logs/Apache2_Stofi-apache-error.log"
    #CustomLog "\\ficodb\DocumentosFico\Stofi_Logs\Apache2_Stofi-apache-access.log"

    ErrorDocument 404 /error_stofi_404.html
    ErrorDocument 500 /error_stofi_500.html
    ErrorDocument 502 /error_stofi_502.html
    ErrorDocument 503 /error_stofi_503.html
    ErrorDocument 504 /error_stofi_504.html

    <Location /Stofi>
        Order allow,deny
        Allow from all
    </Location>   

</VirtualHost>

Those error pages are located on htdocs Apache folder.

I have been reading about flags on another post to redirect 404 errors but I understant that it only will work when the page it's absolutely not reachable, but in the case I am trying, the Tomcat 6 server is down, and it should return a 503 error.

Why when I do not redirect HTTP to HTTPS it works but it doesn't when I redirect?

How can I achieve the same behavior?

Thank you all.

(I have also posted this question on StackOverflow, you can follow this link to the question: http://stackoverflow.com/questions/36281763/show-custom-error-pages-while-redirecting-to-https-on-apache-2-2)