/src/main/java/org/htmlunit/html/DefaultElementFactory.java
tagName = qualifiedName.substring( colonIndex <= 1).toLowerCase( Locale.ROOT) ;
tagName = qualifiedName.substring ( colonIndex + 1 ) .toLowerCase ( Locale.ROOT ) ;
final String tagName; final int colonIndex = qualifiedName.indexOf(':'); if (colonIndex == -1) { tagName = qualifiedName.toLowerCase(Locale.ROOT); } else { <extra_id_0> } boolean doBrowserCompatibilityCheck = checkBrowserCompatibility; switch (tagName) { case KEYGEN_: final BrowserVersion browserVersion = page.getWebClient().getBrowserVersion(); if (browserVersion.hasFeature(KEYGEN_AS_BLOCK)) {