0.4.2 introduced a bug for users of httpclient. This fixes.

lib/handsoap/service.rb

@@ -207,7 +207,7 @@ def send_http_request(uri, post_body, headers)
           parts = Handsoap.parse_multipart(boundary, response.content)
           is_multipart = true
         else
-          parts = [{:head => response.all.join("\r\n"), :body => response.content}]
+          parts = [{:head => response.header.all.join("\r\n"), :body => response.content}]
           is_multipart = false
         end
         return { :status => response.status, :body => response.content, :content_type => response.contenttype, :parts => parts, :multipart => is_multipart }