diff --git a/check_process b/check_process
index 6efab9e..1c21f46 100644
--- a/check_process
+++ b/check_process
@@ -4,18 +4,16 @@
 		domain="domain.tld"	(DOMAIN)
 		path="/path"	(PATH)
 		language="fr"
-		disablecacheck=1
 	; pre-install
 		sudo yunohost app fetchlist
-		sudo yunohost domain add --verbose baikaldomain.tld --admin-password $PASSWORD
+		sudo yunohost domain add baikaldomain.tld --admin-password $PASSWORD
 		sudo yunohost app install baikal -a "domain=baikaldomain.tld&path=/baikal&password=admin"
 	; Checks
 		pkg_linter=1
 		setup_sub_dir=1
 		setup_root=0
 		setup_nourl=0
-# Private test only should be fixed in package check before.
-#		setup_private=1
+		setup_private=1
 		setup_public=0
 		upgrade=1
 		backup_restore=1
diff --git a/conf/settings.php b/conf/settings.php
index ac70cb2..0dbbe83 100644
--- a/conf/settings.php
+++ b/conf/settings.php
@@ -40,7 +40,7 @@ $app['caldav.baseurl'] = '{CALDAV_BASEURL}';
 $app['caldav.authmethod'] = 'basic';
 
 // Do not verify SSL certificate, it is self signed
-$app['caldav.certificate.verify'] = __CACHECK__;
+$app['caldav.certificate.verify'] = false;
 
 // Whether to show public CalDAV urls
 $app['caldav.publicurls'] = true;
diff --git a/manifest.json b/manifest.json
index 814e55b..27c7197 100644
--- a/manifest.json
+++ b/manifest.json
@@ -15,7 +15,7 @@
     },
     "multi_instance": false,
     "requirements": {
-        "yunohost": ">= 2.7.0"
+        "yunohost": ">= 3.0.0"
     },
     "services": [
         "nginx",
@@ -53,14 +53,6 @@
                     "de", "en", "es", "fr", "it", "nl"
                 ],
                 "default": "en"
-            },
-            {
-                "name": "disablecacheck",
-                "ask": {
-                    "en": "Disable certificate checks? (if not using a valid certificate)"
-                },
-                "type": "boolean",
-                "default": false
             }
         ]
     }
diff --git a/scripts/install b/scripts/install
index 829758c..2a74f87 100644
--- a/scripts/install
+++ b/scripts/install
@@ -23,7 +23,6 @@ ynh_abort_if_errors
 domain=$YNH_APP_ARG_DOMAIN
 path_url=$YNH_APP_ARG_PATH
 language=$YNH_APP_ARG_LANGUAGE
-disablecacheck=$YNH_APP_ARG_DISABLECACHECK
 
 # Set and store language
 language=${LANGUAGES[$language]}
@@ -75,7 +74,6 @@ fi
 ynh_app_setting_set "$app" language "$language"
 ynh_app_setting_set "$app" path "$path_url"
 ynh_app_setting_set "$app" domain "$domain"
-ynh_app_setting_set "$app" disablecacheck "$disablecacheck"
 ynh_app_setting_set "$app" final_path "$final_path"
 
 #=================================================
@@ -151,12 +149,6 @@ ynh_replace_string "{LANGUAGE}" "${language}"     "$conf_path"
 ynh_replace_string "{CALDAV_BASEURL}" "${caldav_url}${caldav_baseurl}" "$conf_path"
 ynh_replace_string "{CALDAV_DOMAIN}" "${caldav_domain}"                "$conf_path"
 
-if [ "$disablecacheck" -eq 0 ]; then
-	ynh_replace_string "__CACHECK__" "true"  "$conf_path"
-else
-	ynh_replace_string "__CACHECK__" "false" "$conf_path"
-fi
-
 #=================================================
 # STORE THE CHECKSUM OF THE CONFIG FILE
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index b8f016e..69213ca 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -24,7 +24,6 @@ path_url=$(ynh_app_setting_get "$app" path)
 dbpass=$(ynh_app_setting_get "$app" mysqlpwd)
 encryptkey=$(ynh_app_setting_get "$app" encryptkey)
 language=$(ynh_app_setting_get "$app" language)
-disablecacheck=$(ynh_app_setting_get "$app" disablecacheck)
 
 LOGDIR=/var/log/$app
 
@@ -59,12 +58,6 @@ if [ -z "$db_name" ]; then
 	ynh_app_setting_set "$app" db_name "$db_name"
 fi
 
-# If disablecacheck doesn't exist, create it
-if [ -z "$disablecacheck" ]; then
-	disablecacheck=0
-	ynh_app_setting_set "$app" disablecacheck "$disablecacheck"
-fi
-
 # If final_path doesn't exist, create it
 if [ -z "$final_path" ]; then
 	final_path=/var/www/$app
@@ -170,12 +163,6 @@ ynh_replace_string "{LANGUAGE}" "${language}"     "$conf_path"
 ynh_replace_string "{CALDAV_BASEURL}" "${caldav_url}${caldav_baseurl}" "$conf_path"
 ynh_replace_string "{CALDAV_DOMAIN}" "${caldav_domain}"                "$conf_path"
 
-if [ "$disablecacheck" -eq 0 ]; then
-	ynh_replace_string "__CACHECK__" "true"  "$conf_path"
-else
-	ynh_replace_string "__CACHECK__" "false" "$conf_path"
-fi
-
 #=================================================
 # STORE THE CHECKSUM OF THE CONFIG FILE
 #=================================================
diff --git a/sources/patches/app-00-add-http-auth.patch b/sources/patches/app-00-add-http-auth.patch
new file mode 100644
index 0000000..abd4452
--- /dev/null
+++ b/sources/patches/app-00-add-http-auth.patch
@@ -0,0 +1,53 @@
+--- a/web/app/controllers.php
++++ b/web/app/controllers.php
+@@ -58,14 +58,20 @@ $controllers->before(function(Request $request, Silex\Application $app) {
+     // processing the request
+     if ($app['session']->has('username')) {
+         $username = $app['session']->get('username');
+-        $preferences = $app['preferences.repository']->userPreferences($username);
+-        $app['user.preferences'] = $preferences;
+-        $app['user.timezone'] = $preferences->get('timezone');
+-
+-        // Set application language
+-        $request->setLocale($preferences->get('language'));
+-        $app['translator']->setLocale($preferences->get('language'));
+-        return;
++        // Clear user session if HTTP authentication changed
++        if (isset($_SERVER['PHP_AUTH_USER'])
++        && $username != $_SERVER['PHP_AUTH_USER']) {
++            $app['session']->clear();
++         } else {
++                $preferences = $app['preferences.repository']->userPreferences($username);
++                $app['user.preferences'] = $preferences;
++                $app['user.timezone'] = $preferences->get('timezone');
++
++            // Set application language
++            $request->setLocale($preferences->get('language'));
++            $app['translator']->setLocale($preferences->get('language'));
++            return;
++        }
+     }
+
+     if ($request->isXmlHttpRequest()) {
+diff --git a/web/src/Controller/Authentication.php b/web/src/Controller/Authentication.php
+index deebb751..134cc9a8 100644
+--- a/web/src/Controller/Authentication.php
++++ b/web/src/Controller/Authentication.php
+@@ -34,9 +34,14 @@ class Authentication
+         $success = false;
+         $template_vars = [];
+
+-        if ($request->isMethod('POST')) {
+-            $user = $request->request->get('user');
+-            $password = $request->request->get('password');
++        if ($request->isMethod('POST') || isset($_SERVER['PHP_AUTH_USER'])) {
++            if (isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
++                $user = $_SERVER['PHP_AUTH_USER'];
++                $password = $_SERVER['PHP_AUTH_PW'];
++            } else {
++                $user = $request->request->get('user');
++                $password = $request->request->get('password');
++            }
+
+             if (empty($user) || empty($password)) {
+                 $template_vars['error'] = $app['translator']->trans('messages.error_empty_fields');