Index: branches/RC/core/kernel/application.php
===================================================================
diff -u -N -r11336 -r11346
--- branches/RC/core/kernel/application.php	(.../application.php)	(revision 11336)
+++ branches/RC/core/kernel/application.php	(.../application.php)	(revision 11346)
@@ -11,8 +11,6 @@
 * which returns an instance of the application. The method gurantees that it will return exactly the same instance for any call.<br>
 * See singleton pattern by GOF.
 * @package kernel4
-*
-* Test
 */
 
 class kApplication {
@@ -2366,7 +2364,8 @@
 			fclose($fp);
 		}
 
-		if( !$this->errorHandlers ) {
+		if (!$this->errorHandlers || (defined('DEBUG_MODE') && DEBUG_MODE && defined('DBG_SKIP_REPORTING') && DBG_SKIP_REPORTING)) {
+			// when debugger absent OR it's present, but we actually can't see it's error report (e.g. during ajax request)
 			if ($errno == E_USER_ERROR) {
 				header('HTTP/1.0 500 Script Fatal Error');
 				echo ('<div style="background-color: #FEFFBF; margin: auto; padding: 10px; border: 2px solid red; text-align: center">