/wro4j-core/src/main/java/ro/isdc/wro/http/support/ResponseHeadersConfigurer.java
map.put ( HttpHeader.CACHE_CONTROL.toString ( ) , config.getCacheHttpValue ( ) ) ; map.put ( HttpHeader.EXPIRES.toString ( ) , WroUtil.toDateAsString ( cal.getTimeInMillis ( ) ) ) ;
if (config.isCacheHttpEnabled()) { if (config.isDebug()) { addNoCacheHeaders(map); } else { final Calendar cal = Calendar.getInstance(); cal.roll(Calendar.YEAR, 1); <extra_id_0> map.put(HttpHeader.LAST_MODIFIED.toString(), WroUtil.toDateAsString(getLastModifiedTimestamp())); } } }; }; }