diff --git a/includes/common.inc b/includes/common.inc
index eb68850..af905f0 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -915,7 +915,9 @@ function drupal_http_request($url, array $options = array()) {
     return $result;
   }
   // Parse response headers from the response body.
-  list($response, $result->data) = explode("\r\n\r\n", $response, 2);
+  // Be tolerant of malformed HTTP responses that separate header and body with
+  // \n\n or \r\r instead of \r\n\r\n.  See http://drupal.org/node/183435
+  list($response, $result->data) = preg_split("/\r\n\r\n|\n\n|\r\r/", $response, 2);
   $response = preg_split("/\r\n|\n|\r/", $response);
 
   // Parse the response status line.