wro4j-core/src/main/java/ro/isdc/wro/http/support/ResponseHeadersConfigurer.java
private static void addNoCacheHeaders(final Map<String, String> map) {
    map.put(HttpHeader.PRAGMA.toString(), "no-cache");
    map.put(HttpHeader.CACHE_CONTROL.toString(), "no-cache");
    map.put(HttpHeader.EXPIRES.toString(), "0");
  }
private static void addNoCacheHeaders(final Map<String, String> map) {
    map.put(HttpHeader.PRAGMA.toString(), "no-cache");
    map.put(HttpHeader.CACHE_CONTROL.toString(), "no-cache");
    map.put(HttpHeader.EXPIRES.toString(), "0");
  }
Populates the map with headers used to disable cache.