docs/server.rb in preval-0.4.1 vs docs/server.rb in preval-0.5.0

@@ -12,6 +12,8 @@
 
 post '/' do
   Preval.process(request.body.read || '').tap do |response|
     halt 422 unless response
   end
+rescue NoMethodError
+  halt 422
 end