code: @Override
  	public String getHeaderValue(String headerName) {
  		if (activeMethod == null) {
  			return null;
  		}
  		
  		Header header = activeMethod.getResponseHeader(headerName);
  		
  		if (header == null) {
  			return null;
  		}
  		
  		return header.getValue();
  	}
docs: /* (non-Javadoc)
  @see org.archive.util.binsearch.impl.HTTPSeekableLineReader#getHeaderValue(java.lang.String)