diff --git a/Gemfile b/Gemfile
index eaf2cd4..b736b0d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,6 @@ gem 'guard-cucumber'
 require 'rbconfig'
 case RbConfig::CONFIG['host_os']
 when /darwin/
-  gem 'rb-fsevent'
 when /linux/
   gem 'libnotify'
 end
diff --git a/Rakefile b/Rakefile
index def34d7..3dcac83 100644
--- a/Rakefile
+++ b/Rakefile
@@ -14,7 +14,7 @@ require 'jasmine/headless/task'
 
 Jasmine::Headless::Task.new
 
-PLATFORMS = %w{1.8.7 1.9.2 ree 1.9.3}
+PLATFORMS = %w{1.9.2 1.9.3}
 
 def rvm_bundle(command = '')
   Bundler.with_clean_env do
diff --git a/jasmine-headless-webkit.gemspec b/jasmine-headless-webkit.gemspec
index 2a6c27e..56d70af 100644
--- a/jasmine-headless-webkit.gemspec
+++ b/jasmine-headless-webkit.gemspec
@@ -24,5 +24,5 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'coffee-script'
   s.add_runtime_dependency 'rainbow'
   s.add_runtime_dependency 'multi_json'
-  s.add_runtime_dependency 'sprockets', '~> 2'
+  s.add_runtime_dependency 'sprockets', '>= 2'
 end
diff --git a/skel/template.html.erb b/skel/template.html.erb
index e3ba9ff..930fc10 100644
--- a/skel/template.html.erb
+++ b/skel/template.html.erb
@@ -35,13 +35,17 @@
             }
           }
 
+          var location = window.location.href;
+
           var getLastModified = function(callback) {
             var http = new XMLHttpRequest();
             var header;
 
-            http.open('HEAD', window.location.href, false);
+            http.open('HEAD', location, true);
 
             http.onreadystatechange = function() {
+              console.log(http);
+              console.log(http.getResponseHeader('Last-Modified'));
               callback(http.getResponseHeader('Last-Modified'));
             };
             http.send();