diff --git a/web/app/models/HTML.php b/web/app/models/HTML.php
index cb7f1c0..7da6b03 100644
--- a/web/app/models/HTML.php
+++ b/web/app/models/HTML.php
@@ -88,11 +88,13 @@ class HTML {
 			$param = array_merge($param, $config['params']);
 		}
 
-		$url = '//'.UOJConfig::$data['web'][$config['location']]['host'];
+		$url = ''; // '//'.UOJConfig::$data['web'][$config['location']]['host'];
 		if ($param) {
 			$url .= $path.'?'.HTML::query_string_encode($param);
-		} else {
+		} elseif ($path != '/') {
 			$url .= rtrim($path, '/');
+		} else {
+			$url .= $path;
 		}
 		return HTML::escape($url);
 	}
diff --git a/web/app/views/page-header.php b/web/app/views/page-header.php
index 738204a..f29690a 100644
--- a/web/app/views/page-header.php
+++ b/web/app/views/page-header.php
@@ -39,7 +39,7 @@
 		<?php endif ?>
 		<title><?= isset($PageTitle) ? $PageTitle : UOJConfig::$data['profile']['oj-name-short'] ?> - <?= $PageMainTitle ?></title>
 		
-		<script type="text/javascript">uojHome = '<?= HTML::url('/') ?>'</script>
+		<script type="text/javascript">uojHome = ''; // '<?= HTML::url('/') ?>'</script>
 
 		<!-- Bootstrap core CSS -->
 		<?= HTML::css_link('/css/bootstrap.min.css?v=2019.5.31') ?>