所以我每隔x秒钟循环运行puppeteer bot（robot.js）以打开一个标签页，从页面中捕获一些数据并关闭该标签页....直到下一个循环
所以它可以正常工作，我可以在控制台中看到数据日志，但是每次获得
opening page 1 -> ok
(node:11867) UnhandledPromiseRejectionWarning: Error: Protocol error (Runtime.callFunctionOn): Session closed. Most likely the page has been closed.
at CDPSession.send (/home/hostname/domains/example.com/robot/node_modules/puppeteer/lib/Connection.js:189:29)
at ExecutionContext.evaluateHandle (/home/hostname/domains/example.com/robot/node_modules/puppeteer/lib/ExecutionContext.js:89:75)
at ElementHandle.$ (/home/hostname/domains/example.com/robot/node_modules/puppeteer/lib/ElementHandle.js:272:50)
at Frame.$ (/home/hostname/domains/example.com/robot/node_modules/puppeteer/lib/FrameManager.js:357:34)
(node:11867) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 4)
(node:11867) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
opening page 2 -> ok
bot done successfully ... closing tab for the next loop
如您所见，我收到一条错误消息，告诉我会话已在进程中间关闭..奇怪的是，该循环已成功完成并且可以正常工作
我不知道这是什么，为什么？
所以这是我的问题....是否有任何方法可以获取有关此错误的提示行（或与之相关的信息）以及robot.js在哪里发生的更多信息？
我在错误堆栈中看到的所有内容都是在引用puppeteer内部模块，在这种情况下，对我而言这几乎没有用