Use root_url instead of of default_url

app/controllers/password_resets_controller.rb

@@ -12,7 +12,7 @@ def create
       @user.deliver_password_reset_instructions!
       flash[:notice] = "Instructions to reset your password have been emailed to you. " +
         "Please check your email."
-      redirect_to default_url
+      redirect_to root_url
     else
       flash[:notice] = "No user was found with that email address"
       render :action => :new
@@ -42,7 +42,7 @@ def load_user_using_perishable_token
           "If you are having issues try copying and pasting the URL " +
           "from your email into your browser or restarting the " +
           "reset password process."
-        redirect_to default_url
+        redirect_to root_url
       end
     end
 end