Puppeteer

问题 I am trying to make the code execution wait for all images to load before puppeteer takes a screenshot. My DOM gets populated when initData() function is called, which is defined in the client side js file. Delay or timeout is an option but I am sure there must be a more efficient way of doing it. (async (dataObj) => { const url = dataObj.url; const payload = dataObj.payload; const browser = await puppeteer.launch({ headless: false,devtools:false}); const page = await browser.newPage(); await

问题 I need to use a function inside page.evaluate with puppeteer. I use exposeFunction and I need to send the full Element to my function I have a simple example: const puppeteer = require('puppeteer'); const myFunction = (content) => { console.log(content.outerHTML); // empty } (async () => { const browser = await puppeteer.launch() const page = await browser.newPage() page.on('console', msg => console.log('PAGE LOG:', msg.text())); const url = "https://www.google.com"; await page.goto(url,{

问题 I'm currently using Puppeteer to open a site and take a screenshot of a video. However, the default Chromium browser that puppeteer runs doesn't work with video types. I launched with a local version of Chrome with Puppeteer and everything is working. Is there a way to open an actual chrome browser instance with puppeteer without having to specify a local link to the .exe to make it more scalable and less reliant on a directory when being hosted? Puppeteer 2.0.0 Note: I'm running a non

问题 I'm currently using Puppeteer to open a site and take a screenshot of a video. However, the default Chromium browser that puppeteer runs doesn't work with video types. I launched with a local version of Chrome with Puppeteer and everything is working. Is there a way to open an actual chrome browser instance with puppeteer without having to specify a local link to the .exe to make it more scalable and less reliant on a directory when being hosted? Puppeteer 2.0.0 Note: I'm running a non

问题 im trying to open multiple tabs in a single browser instance , after they're done i close the tabs and then re-opening those tabs every x seconds ... but i want to keep the browser itself open so i dont have to login in each tab on every loop so the browser remains open , tabs open and close here is my simplified code , pleas ignore syntax erros var global_browser = false ; async function init_puppeteer( settings ) { if(global_browser === false ) global_browser = await puppeteer.launch(

问题 im trying to open multiple tabs in a single browser instance , after they're done i close the tabs and then re-opening those tabs every x seconds ... but i want to keep the browser itself open so i dont have to login in each tab on every loop so the browser remains open , tabs open and close here is my simplified code , pleas ignore syntax erros var global_browser = false ; async function init_puppeteer( settings ) { if(global_browser === false ) global_browser = await puppeteer.launch(

问题 I know this has been answered here Puppeteer - counting elements by class name Yet, following this approach, I get 0 as my result using page.$$ - in my test, I always get 0 console.log((await page.$$('.clients-table > tbody > tr > td')).length); verified in browser using document.querySelectorAll() and the result is 4 How could this be??? 回答1: The data is not loaded yet. You can use waitForSelector to ensure the data is loaded properly. So just add this before counting the numbers, await page

问题 I am trying to integrate pyppeteer in a flask app. I have python script that runs pyppeteer and takes a screenshot of a page.This is working file if I run the script individually. The PROBLEM is the same script does not work when i run it in a FLASK APP. I get the following error : loop.run_until_complete(capture(url, 123123)) File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/ Versions/3.7/lib/python3.7/asyncio/base_events.py", line 568, in run_until_complete return future

问题 Puppeteer and PhantomJS are similar. The issue I'm having is happening for both, and the code is also similar. I'd like to catch some informations from a website, which needs authentication for viewing those informations. I can't even access home page because it's detected like a "suspicious activity", like the SS: https://i.imgur.com/p69OIjO.png I discovered that the problem doesn't happen when I tested on Postman using a header named Cookie and the value of it's cookie caught on browser,

问题 Puppeteer and PhantomJS are similar. The issue I'm having is happening for both, and the code is also similar. I'd like to catch some informations from a website, which needs authentication for viewing those informations. I can't even access home page because it's detected like a "suspicious activity", like the SS: https://i.imgur.com/p69OIjO.png I discovered that the problem doesn't happen when I tested on Postman using a header named Cookie and the value of it's cookie caught on browser,