diff --git a/core/includes/common.inc b/core/includes/common.inc index 240f644..160581b 100644 --- a/core/includes/common.inc +++ b/core/includes/common.inc @@ -2497,6 +2497,12 @@ function drupal_deliver_html_page($page_callback_result) { drupal_add_http_header('Content-Type', 'text/html; charset=utf-8'); } + // Send X-UA-Compatible HTTP header to force IE to use the most recent + // rendering engine or use Chrome's frame rendering engine if available. + if (is_null(drupal_get_http_header('X-UA-Compatible'))) { + drupal_add_http_header('X-UA-Compatible', 'IE=edge,chrome=1'); + } + // Send appropriate HTTP-Header for browsers and search engines. global $language_interface; drupal_add_http_header('Content-Language', $language_interface->langcode);