fix deprecated warning

str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated

Author: jcheron

Ajax/common/html/BaseHtml.php

@@ -12,7 +12,7 @@
  * BaseHtml for HTML components
  *
  * @author jc
- * @version 1.3.2
+ * @version 1.3.3
  */
 abstract class BaseHtml extends BaseWidget {
 	use BaseHtmlEventsTrait,BaseHtmlPropertiesTrait;
@@ -219,7 +219,7 @@ public function compile(JsUtils $js = NULL, &$view = NULL) {
 				} else {
 					$v = $value;
 				}
-				$result = str_replace("%{$key}%", $v, $result);
+				$result = \str_replace("%{$key}%", $v ?? '', $result);
 			}
 		}
 		if (isset($js) === true) {