diff --git a/lib/rollbar/request_data_extractor.rb b/lib/rollbar/request_data_extractor.rb
index f8fbcf00..345b8631 100644
--- a/lib/rollbar/request_data_extractor.rb
+++ b/lib/rollbar/request_data_extractor.rb
@@ -8,6 +8,8 @@
 
 module Rollbar
   module RequestDataExtractor
+    ALLOWED_HEADERS_REGEX = /^HTTP_|^CONTENT_TYPE$|^CONTENT_LENGTH$/
+
     def extract_person_data_from_controller(env)
       if env.has_key?('rollbar.person_data')
         person_data = env['rollbar.person_data'] || {}
@@ -92,7 +94,7 @@ def rollbar_request_method(env)
     end
 
     def rollbar_headers(env)
-      env.keys.grep(/^HTTP_/).map do |header|
+      env.keys.grep(ALLOWED_HEADERS_REGEX).map do |header|
         name = header.gsub(/^HTTP_/, '').split('_').map(&:capitalize).join('-')
         if name == 'Cookie'
           {}
diff --git a/spec/rollbar/request_data_extractor_spec.rb b/spec/rollbar/request_data_extractor_spec.rb
index c37bd3f3..cc9c22a9 100644
--- a/spec/rollbar/request_data_extractor_spec.rb
+++ b/spec/rollbar/request_data_extractor_spec.rb
@@ -97,6 +97,25 @@ class ExtractorDummy
 
         expect(result).to be_kind_of(Hash)
       end
+
+      context 'with CONTENT_TYPE and CONTENT_LENGTH headers' do
+        let(:env) do
+          Rack::MockRequest.env_for('/',
+                                    'HTTP_HOST' => 'localhost:81',
+                                    'HTTP_X_FORWARDED_HOST' => 'example.org:9292',
+                                    'CONTENT_TYPE' => 'application/json',
+                                    'CONTENT_LENGTH' => 20)
+
+
+        end
+
+        it 'adds the content type header to the headers key' do
+          result = subject.extract_request_data_from_rack(env)
+
+          expect(result[:headers]['Content-Type']).to be_eql('application/json')
+          expect(result[:headers]['Content-Length']).to be_eql(20)
+        end
+      end
     end
   end
 end