lib/ably/rest/middleware/parse_json.rb in ably-0.1.5 vs lib/ably/rest/middleware/parse_json.rb in ably-0.1.6

@@ -4,14 +4,21 @@
 module Ably
   module Rest
     module Middleware
       class ParseJson < Faraday::Response::Middleware
         def on_complete(env)
-          env.body = parse(env.body) unless env.response_headers['Ably-Middleware-Parsed'] == true
+          if env.response_headers['Content-Type'] == 'application/json'
+            env.body = parse(env.body) unless env.response_headers['Ably-Middleware-Parsed'] == true
+            env.response_headers['Ably-Middleware-Parsed'] = true
+          end
         end
 
         def parse(body)
-          JSON.parse(body)
+          if body.length > 0
+            JSON.parse(body)
+          else
+            body
+          end
         rescue JSON::ParserError => e
           raise Ably::Exceptions::InvalidResponseBody, "Expected JSON response: #{e.message}"
         end
       end
     end