diff --git a/History.txt b/History.txt
index 73451cf..d9ac11e 100644
--- a/History.txt
+++ b/History.txt
@@ -2,6 +2,8 @@
 
 * Major enhancements
 
+  * Added #basic_auth(user, pass) to support HTTP Basic Auth (Aslak Hellesøy)
+  * Added support for Sinatra and Rack (Aslak Hellesøy)
   * Added #within for manipulating the current page within a selector scope
   * Add should_see and should_not_see for verifying HTML response bodys
   * Add support for simulating SSL requests (Luke Melia)
diff --git a/lib/webrat.rb b/lib/webrat.rb
index dffddac..8f11582 100644
--- a/lib/webrat.rb
+++ b/lib/webrat.rb
@@ -3,7 +3,6 @@ module Webrat
 end
 
 require "rubygems"
-require "active_support"
 
 require File.dirname(__FILE__) + "/webrat/core"
 require File.dirname(__FILE__) + "/webrat/rails" if defined?(RAILS_ENV)
diff --git a/lib/webrat/core/form.rb b/lib/webrat/core/form.rb
index 3d739ab..847b159 100644
--- a/lib/webrat/core/form.rb
+++ b/lib/webrat/core/form.rb
@@ -86,11 +86,13 @@ module Webrat
     def form_action
       @element["action"].blank? ? @session.current_url : @element["action"]
     end
+
+    HASH = [Hash, HashWithIndifferentAccess] rescue [Hash]
     
     def merge(all_params, new_param)
       new_param.each do |key, value|
         case all_params[key]
-        when Hash, HashWithIndifferentAccess
+        when *HASH
           merge_hash_values(all_params[key], value)
         when Array
           all_params[key] += value
diff --git a/lib/webrat/core/session.rb b/lib/webrat/core/session.rb
index 6142877..1577b1a 100644
--- a/lib/webrat/core/session.rb
+++ b/lib/webrat/core/session.rb
@@ -10,8 +10,9 @@ module Webrat
     attr_reader :current_url
     
     def initialize
-      @http_method  = :get
-      @data         = {}
+      @http_method     = :get
+      @data            = {}
+      @default_headers = {}
     end
 
     # Saves the page out to RAILS_ROOT/tmp/ and opens it in the default
@@ -52,14 +53,25 @@ module Webrat
       File.expand_path(".")
     end
     
+    def basic_auth(user, pass)
+      @default_headers['HTTP_AUTHORIZATION'] = "Basic " + ["#{user}:#{pass}"].pack("m*")
+    end
+
+    def headers
+      @default_headers.dup
+    end
+
     def request_page(url, http_method, data)
-      debug_log "REQUESTING PAGE: #{http_method.to_s.upcase} #{url} with #{data.inspect}"
-      if @current_url
-        send "#{http_method}", url, data || {}, {"HTTP_REFERER" => @current_url}
-      else
+      h = headers
+      h['HTTP_REFERER'] = @current_url if @current_url
+
+      debug_log "REQUESTING PAGE: #{http_method.to_s.upcase} #{url} with #{data.inspect} and HTTP headers #{h.inspect}"
+      if h.empty?
         send "#{http_method}", url, data || {}
+      else
+        send "#{http_method}", url, data || {}, h
       end
-      
+
       save_and_open_page if exception_caught?
       flunk("Page load was not successful (Code: #{response_code.inspect})") unless success_code?
       
diff --git a/lib/webrat/rack/rack_session.rb b/lib/webrat/rack/rack_session.rb
index b283294..e3c2e24 100644
--- a/lib/webrat/rack/rack_session.rb
+++ b/lib/webrat/rack/rack_session.rb
@@ -1,5 +1,16 @@
 require 'webrat'
 
+class CGIMethods
+  def self.parse_query_parameters(params)
+    hash = {}
+    params.split('&').each do |p|
+      pair = p.split('=')
+      hash[pair[0]] = pair[1]
+    end
+    hash
+  end
+end
+
 module Webrat
   class RackSession < Session
     def response_body
diff --git a/lib/webrat/sinatra/sinatra_session.rb b/lib/webrat/sinatra/sinatra_session.rb
index 597c3b8..3152c6c 100644
--- a/lib/webrat/sinatra/sinatra_session.rb
+++ b/lib/webrat/sinatra/sinatra_session.rb
@@ -6,8 +6,13 @@ module Webrat
   class SinatraSession < RackSession
     include Sinatra::Test::Methods
 
-    def get(*args)
-      get_it(*args)
+    %w(get head post put delete).each do |verb|
+      define_method(verb) do |*args| # (path, data, headers = nil)
+        path, data, headers = *args
+        params = data.merge({:env => headers || {}})
+        self.__send__("#{verb}_it", path, params)
+        follow! while @response.redirect?
+      end
     end
   end
 end
\ No newline at end of file
diff --git a/spec/api/basic_auth_spec.rb b/spec/api/basic_auth_spec.rb
new file mode 100644
index 0000000..07b9cb1
--- /dev/null
+++ b/spec/api/basic_auth_spec.rb
@@ -0,0 +1,23 @@
+require File.expand_path(File.dirname(__FILE__) + "/../spec_helper")
+
+describe "Basic Auth HTTP headers" do
+  before do
+    @session = Webrat::TestSession.new
+    @session.basic_auth('user', 'secret')
+  end
+
+  it "should be present in visits" do
+    @session.should_receive(:get).with("/", {}, {'HTTP_AUTHORIZATION' => "Basic dXNlcjpzZWNyZXQ=\n"})
+    @session.visits("/")
+  end
+  
+  it "should be present in form submits" do
+    @session.response_body = <<-EOS
+      <form method="post" action="/form1">
+        <input type="submit" />
+      </form>
+    EOS
+    @session.should_receive(:post).with("/form1", {}, {'HTTP_AUTHORIZATION' => "Basic dXNlcjpzZWNyZXQ=\n"})
+    @session.clicks_button
+  end
+end