Handling JavaScript execution Scraping the content from the website Monitoring the network Handling Ajax Calls Generating screenshots of webpages This was just the tip of the iceberg, and many more use-cases exist. However, you should know that headless browser testing has its usage, whereas normal...
1asyncfunctionssr(url) {2...3const page =await browser.newPage();45//1. 启用网络拦截器.6await page.setRequestInterception(true);78page.on('request', req =>{9//2.终止掉对不构建DOM的资源请求 // (images, stylesheets, media).10const whitelist = ['document', 'script', 'xhr', 'fetch...
2. Write the Scrape Script:Create a JavaScript file (e.g.,headless_firefox_scrape.js) and write the scraping script using the “puppeteer-firefox” library: constpuppeteer=require('puppeteer-firefox');(async()=>{constbrowser=await puppeteer.launch({headless:true,product:'firefox'});// Launch...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 from selenium.webdriverimportChrome from selenium.webdriver.common.keysimportKeys from selenium.webdriver.chrome.optionsimportOptions # 导入无头浏览器的包 opt=Options()opt.add_argument('--headless')# 设置为无头 opt.add_argument('--disable-gpu')# ...
const buffer = await browser.saveScreenshot('screenshot.png'); console.log('Saved screenshot...'); chromedriver.stop(); browser.end(); })(); 更多資源 這是一些有用的入門資源: 文檔 DevTools Protocol Viewer- API 參考文檔 工具 chrome-remote-interface- node 模塊,封裝了 DevTools 協議 ...
When should I use boojs? When you need to test javascript code that needs to run in a browser but don't necessarily need to test the UI components. Creator So Townsend License boojs is released under the MIT license. See LICENSE for details.About...
JavaScript token _JS_TOKEN_ Note:If you don't see your token, pleaselogin first hereand then refresh this page. #How it works? When you send a request using your JavaScript token to the Crawling API, internally we let your request run on our headless browser infrastructure. Using the JS...
'javascript:','write','<script>document.F=Object</script>','close','create','getOwnPropertyNames','object','[object Window]','slice','getOwnPropertyDescriptor','stringify','_hidden','toPrimitive','symbol-registry','symbols','op-symbols','QObject','findChild','iterator','symbol','...
Headless browser based on WebKit This tool will help you make your AJAX applications crawlable. Webpages based on JavaScript MVC libraries can't be positioned by default because search engines can't run (yet) all the JavaSript code that your page needs to execute in order to show anything....
这就是各种request库或者类似curl这样的工具做的事情,拿到的是页面的文本,然后进行XML文档解析,获得相应的内容。但如果页面有一些动态执行的内容,比如JavaScript生成跳转URL,这样就搞不定了,需要有JS引擎的工具来搞,比如再配合JS引擎自行实现的工具,或者直接使用浏览器内核来搞的工具。