Allow liking/unliking when JavaScript is disabled

Even if pretty much nobody uses a browser with JavaScript disabled when
navigating our sites, there might be times where JavaScript isn't loaded
for reasons like a slow internet connections not getting the JavaScript
files or a technical issue.

So we're making it possible to still use the like/unlike buttons in
these cases.

spec/controllers/debates/votes_controller_spec.rb

@@ -18,6 +18,19 @@ describe Debates::VotesController do
       expect(response).to redirect_to new_user_session_path
     end
 
+    it "redirects authenticated users without JavaScript to the same page" do
+      debate = create(:debate)
+      request.env["HTTP_REFERER"] = debate_path(debate)
+      sign_in create(:user)
+
+      expect do
+        post :create, params: { debate_id: debate.id, value: "yes" }
+      end.to change { debate.reload.votes_for.size }.by(1)
+
+      expect(response).to redirect_to debate_path(debate)
+      expect(flash[:notice]).to eq "Vote created successfully"
+    end
+
     describe "Vote with too many anonymous votes" do
       it "allows vote if user is allowed" do
         Setting["max_ratio_anon_votes_on_debates"] = 100
@@ -52,5 +65,16 @@ describe Debates::VotesController do
         delete :destroy, xhr: true, params: { debate_id: debate.id, id: vote }
       end.to change { debate.reload.votes_for.size }.by(-1)
     end
+
+    it "redirects authenticated users without JavaScript to the same page" do
+      request.env["HTTP_REFERER"] = debates_path
+
+      expect do
+        delete :destroy, params: { debate_id: debate.id, id: vote }
+      end.to change { debate.reload.votes_for.size }.by(-1)
+
+      expect(response).to redirect_to debates_path
+      expect(flash[:notice]).to eq "Vote deleted successfully"
+    end
   end
 end