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-rwxr-xr-xframework/Web/UI/ActiveControls/TCallbackResponseAdapter.php8
1 files changed, 4 insertions, 4 deletions
diff --git a/framework/Web/UI/ActiveControls/TCallbackResponseAdapter.php b/framework/Web/UI/ActiveControls/TCallbackResponseAdapter.php
index d07faaa0..13679fc3 100755
--- a/framework/Web/UI/ActiveControls/TCallbackResponseAdapter.php
+++ b/framework/Web/UI/ActiveControls/TCallbackResponseAdapter.php
@@ -152,10 +152,10 @@ class TCallbackResponseWriter extends TTextWriter
*/
public function flush()
{
- $content = '<!--'.$this->getBoundary().'-->';
- $content .= parent::flush();
- $content .= '<!--//'.$this->getBoundary().'-->';
- return $content;
+ $content = parent::flush();
+ if(empty($content))
+ return "";
+ return '<!--'.$this->getBoundary().'-->'.$content.'<!--//'.$this->getBoundary().'-->';
}
}