Update /adherents/list.php

htdocs/adherents/list.php

@@ -59,7 +59,7 @@ $pagenext = $page + 1;
 if (! $sortorder) { $sortorder=($filter=='outofdate'?"ASC":"DESC"); }
 if (! $sortfield) { $sortfield=($filter=='outofdate'?"d.datefin":"d.lastname"); }
 
-if (GETPOST("button_removefilter"))
+if (GETPOST("button_removefilter_x") || GETPOST("button_removefilter")) // Both test are required to be compatible with all browsers
 {
     $search="";
 	$search_ref="";