[xwiki-users] file upload issue with apache's 'http' reverse proxy (ok with ajp)

Hi, We are (still) running xwiki 6.4.4 and last week we have switched from ajp to http, because we have reasons to think it could solves our issue at http://jira.xwiki.org/browse/XWIKI-12125 Now we run into the following side-effect as we run apache/tomcat with http connector, it prevents us to upload files to wikis. The error is when we try to upload a file to https://mysite.ltd/bin/view/test/tutu (notice, https). We get, in red, at the bottom "An error occurred while uploading xxx.jpg" error when upload a file on page. firebug says: Blocage du chargement du contenu mixte actif (mixed active content) « http://mysite.tld/bin/get/test/tutu?xpage=attachmentslist&forceTestRigh… » Sorry it's in French - but it basically says that mixed active content loading has been blocked... I don't understand why the URL /bin/get above have "http" instead of "https". The configuration is as follow, apache: <VirtualHost xxx:443> ServerName ... # SSL Config... ... ProxyPreserveHost On # This one has been disabled in favor to http # to test if it solve XWIKI-12125 #ProxyPass / ajp://localhost:1234/ retry=5 #ProxyPassReverse / ajp://localhost:1234/ # This one fails with file upload to xwiki ProxyPass / http://localhost:5678/ retry=5 ProxyPassReverse / http://localhost:5678/ </VirtualHost> both tomcat connectors are like that: <Connector port="5678" protocol="HTTP/1.1" URIEncoding="UTF-8" connectionTimeout="20000" redirectPort="8443" /> <Connector port="1234" protocol="AJP/1.3" redirectPort="8443" connectionTimeout="10000" maxConnections="500"/> What could be the issue ? Cheers, Martin