#error_mode => 'fatal', # Output to serverlog
		error_mode => 'output',
		#
		#This may be brief , text , line , or html .
		#These produce an error message with no trace,
		#a multiline error with trace information,
		#a single-line error with tab-separated fields (suitable for writing to a log),
		#and a fancy HTML format.
		error_format => 'html',
		#error_format => 'line',