diff --git a/lib/redmine_omniauth_saml.rb b/lib/redmine_omniauth_saml.rb
index 8b3029d..77814ea 100644
--- a/lib/redmine_omniauth_saml.rb
+++ b/lib/redmine_omniauth_saml.rb
@@ -92,8 +92,6 @@ def validate_configuration!
           :idp_sso_target_url,
           :idp_cert_fingerprint,
           :name_identifier_format,
-          :signout_url,
-          :idp_slo_target_url,
           :name_identifier_value,
           :attribute_mapping ].each do |k|
             raise "Redmine::OmiauthSAML.configure requires that saml.#{k} to be setted" unless saml[k]
diff --git a/lib/redmine_omniauth_saml/account_controller_patch.rb b/lib/redmine_omniauth_saml/account_controller_patch.rb
index 3296cad..77fa963 100644
--- a/lib/redmine_omniauth_saml/account_controller_patch.rb
+++ b/lib/redmine_omniauth_saml/account_controller_patch.rb
@@ -141,7 +141,7 @@ def sp_logout_request
       if not settings[:signout_url]
         logger.info "SLO IdP Endpoint not found in settings, executing then a normal logout'"
         saml_logout_user
-        redirect home_path
+        redirect_to home_path
       else
 
         # Since we created a new SAML request, save the transaction_id
diff --git a/sample-saml-initializers.rb b/sample-saml-initializers.rb
index 6e20213..3a19040 100644
--- a/sample-saml-initializers.rb
+++ b/sample-saml-initializers.rb
@@ -1,12 +1,13 @@
 Redmine::OmniAuthSAML::Base.configure do |config|
   config.saml = {
-    :assertion_consumer_service_url => "http://redmine.example.com", # The redmine application hostname
-    :issuer                         => "sso_issuer",                 # The issuer name
+    :assertion_consumer_service_url => "https://redmine.example.com/auth/saml/callback", # The Redmine callback URL
+    :issuer                         => "https://redmine.example.com/auth/saml/metadata", # The entity ID / issuer name
     :idp_sso_target_url             => "http://sso.desarrollo.unlp.edu.ar/saml2/idp/SSOService.php", # SSO login endpoint
-    :idp_cert_fingerprint           => "certificate fingerprint", # SSO ssl certificate fingerprint
+    :idp_cert_fingerprint           => "certificate fingerprint", # SSO SSL certificate SHA-1 fingerprint
     :name_identifier_format         => "urn:oasis:names:tc:SAML:2.0:nameid-format:persistent",
-    :signout_url                    => "http://sso.example.com/saml2/idp/SingleLogoutService.php?ReturnTo=",
-    :idp_slo_target_url             => "http://sso.example.com/saml2/idp/SingleLogoutService.php",
+    # SLS is not currently supported in the 3.x branch.
+    #:signout_url                    => "http://sso.example.com/saml2/idp/SingleLogoutService.php?ReturnTo=",
+    #:idp_slo_target_url             => "http://sso.example.com/saml2/idp/SingleLogoutService.php",
     :name_identifier_value          => "mail", # Which redmine field is used as name_identifier_value for SAML logout
     :attribute_mapping              => {
     # How will we map attributes from SSO to redmine attributes