Node-RED解析HTML获取数据失败：Bonbast网站数据提取求助

需求与问题 #

我尝试从Bonbast网站提取信息，搭建了简单的Node-RED流，但输出中无法找到目标值。需要获取以下CSS路径对应的数据：

• div.col-xs-12.col-sm-8 > div:nth-child(2) > div:nth-child(1) > table > tbody > tr:nth-child(2)
• div.col-xs-12.col-sm-8 > div:nth-child(2) > div:nth-child(1) > table > tbody > tr:nth-child(3)

当前Node-RED流配置 #

[{"id":"653dfce2813a1724","type":"tab","label":"bonbast.com","disabled":false,"info":"","env":[]},{"id":"d88dd470.0ac7b8","type":"inject","z":"653dfce2813a1724","name":"make request","repeat":"","crontab":"","once":false,"topic":"","payload":"","payloadType":"date","x":150,"y":240,"wires":[["874a3d4e.9b666"]]},{"id":"874a3d4e.9b666","type":"http request","z":"653dfce2813a1724","name":"","method":"GET","ret":"txt","paytoqs":"ignore","url":"https://www.bonbast.com/","tls":"","persist":true,"proxy":"","insecureHTTPParser":false,"authType":"","senderr":false,"headers":[],"x":314.5,"y":240,"wires":[["0e99fe6a44cb90ad"]]},{"id":"7403c68f.21d7c8","type":"debug","z":"653dfce2813a1724","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":990,"y":180,"wires":[]},{"id":"0e99fe6a44cb90ad","type":"html","z":"653dfce2813a1724","name":"","property":"payload","outproperty":"payload","tag":"table.table.table-condensed>tbody>tr>td","ret":"html","as":"single","x":640,"y":180,"wires":[["7403c68f.21d7c8"]]}]

当前问题表现 #

流的输出为空，无法获取目标值，输出情况见截图：

内容的提问来源于stack exchange，提问作者Shahram Shinshaawh