set_error(ex, backtrace=false) public

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# File lib/webrick/httpresponse.rb, line 203
    def set_error(ex, backtrace=false)
      case ex
      when HTTPStatus::Status 
        @keep_alive = false if HTTPStatus::error?(ex.code)
        self.status = ex.code
      else 
        @keep_alive = false
        self.status = HTTPStatus::RC_INTERNAL_SERVER_ERROR
      end
      @header['content-type'] = "text/html"

      if respond_to?(:create_error_page)
        create_error_page()
        return
      end

      if @request_uri
        host, port = @request_uri.host, @request_uri.port
      else
        host, port = @config[:ServerName], @config[:Port]
      end

      @body = ''
      @body << "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\">\n<HTML>\n<HEAD><TITLE>\#{HTMLUtils::escape(@reason_phrase)}</TITLE></HEAD>\n<BODY>\n<H1>\#{HTMLUtils::escape(@reason_phrase)}</H1>\n\#{HTMLUtils::escape(ex.message)}\n<HR>\n"

      if backtrace && $DEBUG
        @body << "backtrace of `#{HTMLUtils::escape(ex.class.to_s)}' "
        @body << "#{HTMLUtils::escape(ex.message)}"
        @body << "<PRE>"
        ex.backtrace.each{|line| @body << "\t#{line}\n"}
        @body << "</PRE><HR>"
      end

      @body << "<ADDRESS>\n\#{HTMLUtils::escape(@config[:ServerSoftware])} at\n\#{host}:\#{port}\n</ADDRESS>\n</BODY>\n</HTML>\n"
    end
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