fail nicely when not able to figure out endpoint

lib/travis/api/app/middleware/skylight/actual.rb

@@ -19,6 +19,7 @@ class Travis::Api::App
         return @endpoint if defined? @endpoint and @endpoint
         return unless headers['X-Pattern'].present? and headers['X-Endpoint'].present?
         @endpoint = Object.const_get(headers['X-Endpoint']).prefix + headers['X-Pattern']
+      rescue NameError
       end
     end
   end