Redmine

Dear Redmine team,

I've a strange behavior/issue during the user connexion with IE9 (no test on other IE) when I use the alias but it's ok with the hostname.
I've LDAP connexion to AD directory.
No issue with another web browser like FireFox or Chrome (alais and hostname ok).
Only one plugin and no change if I remove it.

Below, some technical informations:

• Environment:
  Redmine version 2.5.1.stable
  Ruby version 1.9.3-p484 (2013-11-22) [x86_64-linux]
  Rails version 3.2.17
  Environment production
  Database adapter Mysql2
  SCM:
  Subversion 1.6.11
  Filesystem
  Redmine plugins:
  redmine_issue_templates 0.0.8

• Web access: Alias & HTTPS

• Apache conf:
  Two virtuals host for redmine and same behavior for eachone
  <VirtualHost *:443>
  ServerName UCC_redmine.XXX.corp:443
  DocumentRoot /home/apache/html/redmine-2.5.1/public/
  <Directory "/home/apache/html/redmine-2.5.1/public/">
  Options Indexes ExecCGI FollowSymLinks
  Order allow,deny
  Allow from all
  AllowOverride all
  </Directory>

  ErrorLog /var/log/httpd/redmine_ssl_error.log
  TransferLog /var/log/httpd/redmine_ssl_access.log
  CustomLog /var/log/httpd/redmine_ssl_request.log "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"
  LogLevel info

  SSLEngine on
  SSLProtocol all -SSLv2
  SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM:+LOW
  SSLCertificateFile /home/apache/html/redmine-2.5.1/config/cert/UCC_redmine.XXX.corp.crt
  SSLCertificateKeyFile /home/apache/html/redmine-2.5.1/config/cert/UCC_redmine.XXX.corp.key
  </VirtualHost>

• Logs:
  IE - hostname - OK
  Started POST "/login" for @IPUSER at 2014-05-15 17:54:32 +0200
  Processing by AccountController#login as HTML
  Parameters: {"utf8"=>"â", "authenticity_token"=>"6EoJDRXhaE9kXwqD1W+POIhu49K6o+jjW+8aS45C0CU=", "back_url"=>"https://m01a8-fript02/", "username"=>"USERID", "password"=>"[FILTERED]", "login"=>"Connexion »"}
  Current user: anonymous
  Successful authentication for 'USERID' from @IPUSER at 2014-05-15 15:54:33 UTC
  Redirected to https://m01a8-fript02/
  Completed 302 Found in 211.2ms (ActiveRecord: 4.2ms)

IE - Alias - KO
Started POST "/login" for @IPUSER at 2014-05-15 17:57:27 +0200
Processing by AccountController#login as HTML
Parameters: {"utf8"=>"â", "authenticity_token"=>"6FEa0BYyKvsz0JLRcpwA5qfE01BOxKrX6Ymdlz3tf0U=", "back_url"=>"https://ucc_redmine.XXX.corp/", "username"=>"USERID", "password"=>"[FILTERED]", "login"=>"Connexion »"}
WARNING: Can't verify CSRF token authenticity
Rendered common/error.html.erb within layouts/base (0.6ms)
Filter chain halted as :verify_authenticity_token rendered or redirected
Completed 422 Unprocessable Entity in 8.4ms (Views: 7.7ms | ActiveRecord: 0.0ms)

FF - OK
Started POST "/login" for @IPUSER at 2014-05-15 17:46:41 +0200
Processing by AccountController#login as HTML
Parameters: {"utf8"=>"â", "authenticity_token"=>"U8IhNNVpo+KHuF5T5DwXkEtNnSk0dDgc6KQUaDyPHIU=", "back_url"=>"https://ucc_redmine.XXX.corp/", "username"=>"USERID", "password"=>"[FILTERED]", "login"=>"Connexion »"}
Current user: anonymous
Successful authentication for 'USERID' from @IPUSER at 2014-05-15 15:46:41 UTC
Could not redirect to invalid URL https://ucc_redmine.XXX.corp/
Redirected to https://ucc_redmine.XXX.corp/my/page
Completed 302 Found in 385.2ms (ActiveRecord: 5.4ms)

Thanks in advance for your feedback!!!