Disable all network requests in Cucumber suite

closes #6368

features/support/env.rb

@@ -68,9 +68,6 @@ require Rails.root.join('spec', 'support', 'inlined_jobs')
 require Rails.root.join('spec', 'support', 'user_methods')
 include HelperMethods
 
-# require 'webmock/cucumber'
-# WebMock.disable_net_connect!(:allow_localhost => true)
-
 Before do
   Devise.mailer.deliveries = []
 end

features/support/webmock.rb

+require "webmock/cucumber"
+WebMock.disable_net_connect!(allow_localhost: true)
+
+Before do
+  stub_request(:head, /.+/).with(
+    headers: {
+      "Accept"     => "text/html",
+      "User-Agent" => "OpenGraphReader/0.6.1 (+https://github.com/jhass/open_graph_reader)"
+    }
+  ).to_return(status: 200, body: "", headers: {"Content-Type" => "text/plain"})
+end