diff --git a/doc/PRE_UPGRADE.d/3.4.23~ynh3 b/doc/PRE_UPGRADE.d/3.4.23~ynh3
new file mode 100644
index 0000000..d6f1a0f
--- /dev/null
+++ b/doc/PRE_UPGRADE.d/3.4.23~ynh3
@@ -0,0 +1 @@
+Now with the `3.4.23~ynh3` version, the Send package supports download link sharing even if the app is protected by the YunoHost login page.
\ No newline at end of file
diff --git a/manifest.toml b/manifest.toml
index 65b2f04..c9fd8e0 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -52,8 +52,16 @@ ram.runtime = "50M"
 
     [resources.permissions]
     main.url = "/"
+    main.additional_urls = ["/api/upload"]
+    
     api.url = "/api"
     api.allowed = "visitors"
-    api.auth_header =false
+    api.auth_header = false
     api.show_tile = false
     api.protected = true
+    
+    download.url = "/download"
+    download.allowed = "visitors"
+    download.auth_header = false
+    download.show_tile = false
+    download.additional_urls = [ "re:^__DOMAIN__/.*.css$", "re:^__DOMAIN__/.*.js$", "re:^__DOMAIN__/.*.svg$", "re:^__DOMAIN__/.*.woff2$", "re:^__DOMAIN__/favicon.*.png$" ]
diff --git a/scripts/change_url b/scripts/change_url
index 0339ec5..5df6755 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -16,7 +16,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 ynh_script_progression --message="Stopping a systemd service..." --weight=1
 
-ynh_systemd_action --service_name=$app --action="stop"
+ynh_systemd_action --service_name="$app" --action="stop"
 
 #=================================================
 # MODIFY URL IN NGINX CONF
@@ -36,7 +36,7 @@ domain=$new_domain
 ynh_add_config --template="../conf/config.js" --destination="$install_dir/server/config.js"
 
 chmod 400 "$install_dir/server/config.js"
-chown $app:$app "$install_dir/server/config.js"
+chown "$app:$app" "$install_dir/server/config.js"
 
 #=================================================
 # GENERIC FINALISATION
@@ -46,7 +46,7 @@ chown $app:$app "$install_dir/server/config.js"
 ynh_script_progression --message="Starting a systemd service..." --weight=1
 
 # Start a systemd service
-ynh_systemd_action --service_name=$app --action="start" --log_path="systemd"
+ynh_systemd_action --service_name="$app" --action="start" --log_path="systemd"
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/install b/scripts/install
index f830ed4..aedf981 100644
--- a/scripts/install
+++ b/scripts/install
@@ -14,7 +14,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 ynh_script_progression --message="Installing dependencies..." --weight=20
 
-ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
+ynh_exec_warn_less ynh_install_nodejs --nodejs_version="$nodejs_version"
 
 #=================================================
 # CREATE A REDIS DATABASE
@@ -34,7 +34,7 @@ ynh_script_progression --message="Setting up source files..." --weight=2
 ynh_setup_source --dest_dir="$install_dir"
 
 chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
+chown -R "$app:www-data" "$install_dir"
 chmod +x "$install_dir/server/bin/prod.js"
 
 #=================================================
@@ -49,7 +49,7 @@ env_path="$PATH"
 # Create a dedicated systemd config
 ynh_add_systemd_config
 
-yunohost service add $app --description="Simple, private file sharing" --log="/var/log/$app/$app.log"
+yunohost service add "$app" --description="Simple, private file sharing" --log="/var/log/$app/$app.log"
 
 #=================================================
 # ADD A CONFIGURATION
@@ -59,7 +59,7 @@ ynh_script_progression --message="Adding a configuration file..." --weight=2
 ynh_add_config --template="config.js" --destination="$install_dir/server/config.js"
 
 chmod 400 "$install_dir/server/config.js"
-chown $app: "$install_dir/server/config.js"
+chown "$app:" "$install_dir/server/config.js"
 
 #=================================================
 # SPECIFIC SETUP
@@ -70,8 +70,8 @@ ynh_script_progression --message="Building app... (this will take some time and
 
 pushd "$install_dir"
 	ynh_use_nodejs
-	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH $ynh_npm install
-	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH $ynh_npm run build
+	ynh_exec_warn_less ynh_exec_as "$app" env "$ynh_node_load_PATH" "$ynh_npm" install
+	ynh_exec_warn_less ynh_exec_as "$app" env "$ynh_node_load_PATH" "$ynh_npm" run build
 popd
 
 #=================================================
@@ -80,7 +80,7 @@ popd
 ynh_script_progression --message="Starting a systemd service..." --weight=2
 
 # Start a systemd service
-ynh_systemd_action --service_name=$app --action="start" --log_path="systemd"
+ynh_systemd_action --service_name="$app" --action="start" --log_path="systemd"
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/remove b/scripts/remove
index 9846aba..c5feb91 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -16,10 +16,10 @@ source /usr/share/yunohost/helpers
 #=================================================
 
 # Remove the service from the list of services known by YunoHost (added from `yunohost service add`)
-if ynh_exec_warn_less yunohost service status $app >/dev/null
+if ynh_exec_warn_less yunohost service status "$app" >/dev/null
 then
 	ynh_script_progression --message="Removing $app service integration..." --weight=1
-	yunohost service remove $app
+	yunohost service remove "$app"
 fi
 
 # Remove the dedicated systemd config
diff --git a/scripts/restore b/scripts/restore
index 49895c4..7f0a5b5 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -18,7 +18,7 @@ ynh_script_progression --message="Restoring the app main directory..." --weight=
 ynh_restore_file --origin_path="$install_dir"
 
 chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
+chown -R "$app:www-data" "$install_dir"
 chmod +x "$install_dir/server/bin/prod.js"
 
 #=================================================
@@ -28,21 +28,21 @@ chmod +x "$install_dir/server/bin/prod.js"
 #=================================================
 ynh_script_progression --message="Reinstalling dependencies..." --weight=7
 
-ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
+ynh_exec_warn_less ynh_install_nodejs --nodejs_version="$nodejs_version"
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
 ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
-systemctl enable $app.service --quiet
+systemctl enable "$app.service" --quiet
 
-yunohost service add $app --description="Simple, private file sharing" --log="/var/log/$app/$app.log"
+yunohost service add "$app" --description="Simple, private file sharing" --log="/var/log/$app/$app.log"
 
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
 ynh_script_progression --message="Starting a systemd service..." --weight=1
 
-ynh_systemd_action --service_name=$app --action="start" --log_path="systemd"
+ynh_systemd_action --service_name="$app" --action="start" --log_path="systemd"
 
 ynh_systemd_action --service_name=nginx --action=reload
 
diff --git a/scripts/upgrade b/scripts/upgrade
index b667c3d..dce977e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -22,7 +22,7 @@ upgrade_type=$(ynh_check_app_version_changed)
 #=================================================
 ynh_script_progression --message="Stopping a systemd service..." --weight=1
 
-ynh_systemd_action --service_name=$app --action="stop" --log_path="systemd"
+ynh_systemd_action --service_name="$app" --action="stop" --log_path="systemd"
 
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
@@ -40,11 +40,11 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=10
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir=$install_dir --keep="server/config.js"
+	ynh_setup_source --dest_dir="$install_dir" --keep="server/config.js"
 fi
 
 chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
+chown -R "$app:www-data" "$install_dir"
 chmod +x "$install_dir/server/bin/prod.js"
 
 #=================================================
@@ -52,7 +52,7 @@ chmod +x "$install_dir/server/bin/prod.js"
 #=================================================
 ynh_script_progression --message="Upgrading dependencies..." --weight=18
 
-ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
+ynh_exec_warn_less ynh_install_nodejs --nodejs_version="$nodejs_version"
 
 #=================================================
 # NGINX CONFIGURATION
@@ -66,7 +66,7 @@ env_path="$PATH"
 # Create a dedicated systemd config
 ynh_add_systemd_config
 
-yunohost service add $app --description="Simple, private file sharing" --log="/var/log/$app/$app.log"
+yunohost service add "$app" --description="Simple, private file sharing" --log="/var/log/$app/$app.log"
 
 #=================================================
 # UPDATE A CONFIG FILE
@@ -76,7 +76,7 @@ ynh_script_progression --message="Updating a configuration file..."
 ynh_add_config --template="config.js" --destination="$install_dir/server/config.js"
 
 chmod 400 "$install_dir/server/config.js"
-chown $app: "$install_dir/server/config.js"
+chown "$app:" "$install_dir/server/config.js"
 
 #=================================================
 # SPECIFIC UPGRADE
@@ -90,8 +90,8 @@ then
 
 	pushd "$install_dir"
 		ynh_use_nodejs
-		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH $ynh_npm install
-		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH $ynh_npm run build
+		ynh_exec_warn_less ynh_exec_as "$app" env "$ynh_node_load_PATH" "$ynh_npm" install
+		ynh_exec_warn_less ynh_exec_as "$app" env "$ynh_node_load_PATH" "$ynh_npm" run build
 	popd
 fi
 
@@ -100,7 +100,7 @@ fi
 #=================================================
 ynh_script_progression --message="Starting a systemd service..." --weight=1
 
-ynh_systemd_action --service_name=$app --action="start" --log_path="systemd"
+ynh_systemd_action --service_name="$app" --action="start" --log_path="systemd"
 
 #=================================================
 # END OF SCRIPT