/src/main/java/org/htmlunit/html/DefaultElementFactory.java
tagName = namespaceURI.toLowerCase( Locale.ROOT) ;
tagName = qualifiedName.toLowerCase ( Locale.ROOT ) ;
final String qualifiedName, final Attributes attributes, final boolean checkBrowserCompatibility) { final Map<String, DomAttr> attributeMap = toMap(page, attributes); final HtmlElement element; final String tagName; final int colonIndex = qualifiedName.indexOf(':'); if (colonIndex == -1) { <extra_id_0> } else { tagName = qualifiedName.substring(colonIndex + 1).toLowerCase(Locale.ROOT); } boolean doBrowserCompatibilityCheck = checkBrowserCompatibility; switch (tagName) {