- Patch #259001 by paul.lovvik: drupal_cron_run should ignore a user abort.

includes/common.inc

@@ -2502,10 +2502,11 @@ function page_set_cache() {
  * Returns TRUE if ran successfully
  */
 function drupal_cron_run() {
-  // If not in 'safe mode', increase the maximum execution time:
-  if (!ini_get('safe_mode')) {
-    set_time_limit(240);
-  }
+  // Allow execution to continue even if the request gets canceled.
+  @ignore_user_abort(TRUE);
+
+  // Increase the maximum execution time.
+  @set_time_limit(240);
 
   // Fetch the cron semaphore
   $semaphore = variable_get('cron_semaphore', FALSE);