Puppeteer

I'm trying to do web scraping using puppeteer. The element I need to handle loads lately. When I click on the search button the result loads in AJAX and I need to pick the element I am trying to pick is in the search results but not in the initial load of the page. The page screenshot it is producing contains search results too and if it output the HTML source I can see the element there too. but not sure why I cannot pick it. You can use await page.waitForSelector(cssSelector); to ask Puppeteer to wait for any element to be displayed in the UI before continuing on to further steps in your

I am facing this problem in puppeteer in a for loop when i go on another page to get data, then when i go back it comes me this error line: Error "We have an error Error: the execution context was destroyed, probably because of a navigation." It's a directory page that contains 15 companies per page and then I want to visit each company to get information. try { const browser = await pupputer.launch({ headless: false, devtools: true, defaultViewport: { width: 1100, height: 1000 } }); const page = await browser.newPage(); await page.goto('MyLink'); await page.waitForSelector('.list-firms'); for

puppeteer google chrome团队出品的puppeteer 是依赖nodejs和chromium的自动化测试库，它的最大优点就是可以处理网页中的 动态内容 ，如JavaScript，能够更好的模拟用户。 有些网站的反爬虫手段是将部分内容隐藏于某些javascript/ajax请求中，致使直接获取a标签的方式不奏效。甚至有些网站会设置隐藏元素“陷阱”，对用户不可见，脚本触发则认为是机器。这种情况下，puppeteer的优势就凸显出来了。 它可实现如下功能： 生成页面的屏幕截图和PDF。 抓取SPA并生成预先呈现的内容（即“SSR”）。 自动表单提交，UI测试，键盘输入等。 创建一个最新的自动化测试环境。使用最新的JavaScript和浏览器功能，直接在最新版本的Chrome中运行测试。 捕获跟踪您网站的时间线，以帮助诊断性能问题。 开源地址：[ https://github.com/GoogleChrome/puppeteer/ ][1] 安装 npm i puppeteer 注意 先安装nodejs, 并在nodejs文件根目录下执行（npm文件同级）。 安装过程中会下载chromium，大约120M。 用两天（大约10小时）摸索，绕过了相当多的异步的坑，笔者对puppeteer和nodejs有了一定的掌握。 一张长图，抓取blog文章列表： 抓取blog文章

Here is my use case: I have a link which on clicking opens a new tab and loads the content. What I am looking for: Is there a way to switch the reference of the page while new tab opens or create a reference for the new tab? Use next function: let clickAndWaitForTarget = async (clickSelector, page, browser) => { const pageTarget = page.target(); //save this to know that this was the opener await page.click(clickSelector); //click on a link const newTarget = await browser.waitForTarget(target => target.opener() === pageTarget); //check that you opened this page, rather than just checking the