diff --git a/lib/fhir_client/sections/search.rb b/lib/fhir_client/sections/search.rb
index b28cf555..912b1972 100644
--- a/lib/fhir_client/sections/search.rb
+++ b/lib/fhir_client/sections/search.rb
@@ -1,3 +1,4 @@
+
 module FHIR
   module Sections
     module Search
@@ -6,16 +7,18 @@ module Search
       #
       # @param klass The type of resource to be searched.
       # @param options A hash of options used to construct the search query.
+      # @param headers A hash of headers used in the http request itself.
       # @return FHIR::ClientReply
       #
-      def search(klass, options = {}, format = @default_format)
+      def search(klass, options = {}, format = @default_format, headers = {})
         options[:resource] = klass
         options[:format] = format
 
         reply = if options[:search] && options[:search][:flag]
-                  post resource_url(options), nil, fhir_headers({content_type: 'application/x-www-form-urlencoded'})
+                  headers[:content_type] = 'application/x-www-form-urlencoded'
+                  post resource_url(options), nil, fhir_headers(headers)
                 else
-                  get resource_url(options), fhir_headers
+                  get resource_url(options), fhir_headers(headers)
                 end
         # reply = get resource_url(options), fhir_headers(options)
         reply.resource = parse_reply(klass, format, reply)
@@ -23,25 +26,27 @@ def search(klass, options = {}, format = @default_format)
         reply
       end
 
-      def search_existing(klass, id, options = {}, format = @default_format)
+      def search_existing(klass, id, options = {}, format = @default_format, headers = {})
         options.merge!(resource: klass, id: id, format: format)
         # if options[:search][:flag]
         reply = if options[:search] && options[:search][:flag]
-                  post resource_url(options), nil, fhir_headers({content_type: 'application/x-www-form-urlencoded'})
+                  headers[:content_type] = 'application/x-www-form-urlencoded'
+                  post resource_url(options), nil, fhir_headers(headers)
                 else
-                  get resource_url(options), fhir_headers
+                  get resource_url(options), fhir_headers(headers)
                 end
         reply.resource = parse_reply(klass, format, reply)
         reply.resource_class = klass
         reply
       end
 
-      def search_all(options = {}, format = @default_format)
+      def search_all(options = {}, format = @default_format, headers = {})
         options[:format] = format
         reply = if options[:search] && options[:search][:flag]
-                  post resource_url(options), nil, fhir_headers({content_type: 'application/x-www-form-urlencoded'})
+                  headers[:content_type] = 'application/x-www-form-urlencoded'
+                  post resource_url(options), nil, fhir_headers(headers)
                 else
-                  get resource_url(options), fhir_headers
+                  get resource_url(options), fhir_headers(headers)
                 end
         reply.resource = parse_reply(nil, format, reply)
         reply.resource_class = nil