Fix sign out

Author: jurre

app/controllers/users_controller.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 include TimeSeriesInitializer
 
 class UsersController < ApplicationController

app/views/application/_navbar.html.haml

@@ -34,4 +34,4 @@
                       %input#modal-1.modal-state{:type => "checkbox"}/
                       = render 'modal'
                 %li.devider
-                %li= link_to t("sign_out"), destroy_user_session_path
+                %li= link_to t("sign_out"), destroy_user_session_path, method: :delete

config/initializers/devise.rb

@@ -269,7 +269,7 @@
   # config.navigational_formats = ["*/*", :html]
 
   # The default HTTP method used to sign out a resource. Default is :delete.
-  # config.sign_out_via = :get
+  config.sign_out_via = :delete
 
   # ==> OmniAuth
   # Add a new OmniAuth provider. Check the wiki for more information on setting