diff --git a/includes/bootstrap.inc b/includes/bootstrap.inc
index d7d5954..129fafe 100644
--- a/includes/bootstrap.inc
+++ b/includes/bootstrap.inc
@@ -1063,6 +1063,7 @@ function drupal_page_get_cache($check_only = FALSE) {
  */
 function drupal_page_is_cacheable($allow_caching = NULL) {
   $allow_caching_static = &drupal_static(__FUNCTION__, TRUE);
+
   if (isset($allow_caching)) {
     $allow_caching_static = $allow_caching;
   }
@@ -2396,6 +2397,7 @@ function _drupal_bootstrap_page_cache() {
     drupal_bootstrap(DRUPAL_BOOTSTRAP_VARIABLES, FALSE);
     $cache_enabled = variable_get('cache');
   }
+
   drupal_block_denied(ip_address());
   // If there is no session cookie and cache is enabled (or forced), try
   // to serve a cached page.
@@ -2405,26 +2407,34 @@ function _drupal_bootstrap_page_cache() {
     $user = drupal_anonymous_user();
     // Get the page from the cache.
     $cache = drupal_page_get_cache();
+
     // If there is a cached page, display it.
     if (is_object($cache)) {
-      header('X-Drupal-Cache: HIT');
-      // Restore the metadata cached with the page.
-      $_GET['q'] = $cache->data['path'];
-      drupal_set_title($cache->data['title'], PASS_THROUGH);
-      date_default_timezone_set(drupal_get_user_timezone());
-      // If the skipping of the bootstrap hooks is not enforced, call
-      // hook_boot.
       if (variable_get('page_cache_invoke_hooks', TRUE)) {
         bootstrap_invoke_all('boot');
       }
-      drupal_serve_page_from_cache($cache);
-      // If the skipping of the bootstrap hooks is not enforced, call
-      // hook_exit.
-      if (variable_get('page_cache_invoke_hooks', TRUE)) {
-        bootstrap_invoke_all('exit');
+
+      // Check to see if hook_boot decided this page should not be cached
+      if (drupal_page_is_cacheable()) {
+        header('X-Drupal-Cache: HIT');
+        // Restore the metadata cached with the page.
+        $_GET['q'] = $cache->data['path'];
+        drupal_set_title($cache->data['title'], PASS_THROUGH);
+        date_default_timezone_set(drupal_get_user_timezone());
+        // If the skipping of the bootstrap hooks is not enforced, call
+        // hook_boot.
+        drupal_serve_page_from_cache($cache);
+        // If the skipping of the bootstrap hooks is not enforced, call
+        // hook_exit.
+        if (variable_get('page_cache_invoke_hooks', TRUE)) {
+          bootstrap_invoke_all('exit');
+        }
+        // We are done.
+        exit;
+      }
+      else {
+        header('X-Drupal-Cache: MISS');
       }
-      // We are done.
-      exit;
     }
     else {
       header('X-Drupal-Cache: MISS');