// executablePath is specified
const browser = await puppeteer.launch({
executablePath: '/path/to/chrome'
});
// // executablePath is not specified
const browser = await puppeteer.launch();
// This will not work.
// console.log('executablePath is', browser.executablePath)
If we do not specify a value for the executablePath option, Puppeteer will try to find the default installation of Chrome or Chromium on the system. On Windows, this is usually C:\Program Files (x86)\Google\Chrome\Application\chrome.exe. On macOS and Linux, Puppeteer will try to use the chrome or chromium executable in the PATH.
How we can find out which executable is getting used by Puppetter in Puppeteer script itself?
https://pptr.dev/api/puppeteer.puppeteernode.executablepath
const puppeteer = require('puppeteer')
console.log(puppeteer.executablePath())
Example output on my node-18 docker image is
root#021100c40ec4:/usr/src/app# node -e "console.log(require('puppeteer').executablePath())"
/root/.cache/puppeteer/chrome/linux-1069273/chrome-linux/chrome
Related
chromium not working on google colab
Hi, I want to run puppeteer on google colab.
running test code with !node --trace-warnings test.js says:
Command '/usr/bin/chromium-browser' requires the chromium snap to be installed. Please install it with:snap install chromium
installed chromium with
!apt install chromium-chromedriver
!cp /usr/lib/chromium-browser/chromedriver /usr/bin
!apt install chromium-browser # also gave same result
puppeteer code
const puppeteer = require('puppeteer');
//varv');
const dotenv = require('dotenv');
dotenv.config();
(async () => {
const browser = await puppeteer.launch({executablePath: '/usr/bin/chromium-browser'});
const page = await browser.newPage();
await page.goto('https://www.google.com');
await page.screenshot({
path: 'google.png',
fullPage: true
});
await browser.close();
})();
Tried
I tried installing chromium with 'snap install chromium' it says:
error: cannot communicate with server: Post http://localhost/v2/snaps/chromium: dial unix /run/snapd.socket: connect: no such file or directory
Tried installing snapd
!systemctl status snapd.service # snapd: unrecognized service
!sudo apt update && upgrade
!sudo apt install snapd
!which snapd # error: cannot communicate with server: Post http://localhost/v2/snaps/chromium: dial unix /run/snapd.socket: connect: no such file or directory
Tried brave-browser
installation code: https://brave.com/linux/
executablePath: "/opt/brave.com/brave"
error: (node:42514) UnhandledPromiseRejectionWarning: Error: Failed to launch the browser process! spawn /opt/brave.com/brave EACCES
chmod +x /opt/brave.com/brave # did not solve
Tried google-chrome: Worked while creating this question
installation code: https://brave.com/linux/
executablePath: "/opt/google/chrome/chrome"
references:
https://colab.research.google.com/drive/168X6Zo0Yk2fzEJ7WDfY9Q_0UOEmHSrZc?usp=sharing#scrollTo=_Yf4OfPBAAPR
https://forum.snapcraft.io/t/snap-d-error-cannot-communicate-with-server-connection-refused/6093/23
To use Chromium with Puppeteer on Google Colab, you can install Puppeteer and launch Chromium using the following code:
!pip install puppeteer
Now python Code.
import asyncio
from pyppeteer import launch
async def main():
browser = await launch(headless=False, args=['--no-sandbox'])
page = await browser.newPage()
await page.goto('https://www.example.com')
await browser.close()
asyncio.get_event_loop().run_until_complete(main())
Note that the headless option is set to False to launch a visible Chromium browser. The --no-sandbox argument is also added to run Chromium in a containerized environment, which is necessary when running on Google Colab.
With this code, you can launch a Chromium browser, create a new page, navigate to a URL, and close the browser, all using Puppeteer. From here, you can use the Puppeteer API to automate tasks or extract data from web pages.
I'm using the plugin gatsby-remark-mermaid which also includes installing puppeteer. The mermaid diagrams are rendered properly on my end, however it gets an error on the build. Here is the error message:
Failed to launch the browser process!
/tmp/build/node_modules/puppeteer/.local-chromium/linux-970485/chrome-linux/chrome: error while loading shared libraries: libnss3.so: cannot open shared object file: No such file or directory
I looked into the documentation and since I'm running it on Heroku, I must include this configuration:
puppeteer.launch({ args: ['--no-sandbox'] });
I tried using it on gatsby-browser.js like this, but I only got errors instead.
const puppeteer = require('puppeteer')
const browser = await puppeteer.launch({ args: ['--no-sandbox'] })
Where do I need to put this configuration for it to work?
this is my config on the puppeteer cluster :
const cluster = await Cluster.launch({
concurrency: Cluster.CONCURRENCY_CONTEXT,
workerCreationDelay: 2000,
puppeteerOptions:{args: ['--no-sandbox', '--disable-setuid-sandbox']},
maxConcurrency: numCPUs,
});
when I try to run in my host it comes with error:
Error: Failed to launch the browser process!
[1014/132057.583562:ERROR:zygote_host_impl_linux.cc(90)] Running as
root without --no-sandbox is not supported. See
https://crbug.com/638180.
but according to the documentation of puppeter cluster you can pass the puppeteer option in puppeteerOptions
why passing options are not working?
I tried to launch chrome with puppeteer but it gave me this error
Error: Failed to launch the browser process! spawn //C://Program Files (x86)//Google//Chrome//Application ENOENT
This is the code I used
const puppeteer = require('puppeteer')
const browser = await puppeteer.launch( { headless: false,
executablePath: '//C://Program Files (x86)//Google//Chrome//Application' })
So how can I launch chrome with puppeteer?
The path you gave is invalid in this format. If you are on Windows (which I suppose based on your currently given path) (1) you should use double backslashes \\, (2) but you shouldn't start your path with slashes nor backslashes. (3) Also you need the exact executable file as well at the end: chrome.exe.
The process goes like this: You can retrieve the exact executable path at your Chrome's chrome://version/ page, then you just need to escape each backslashes with another backslashes.
Correct usage:
C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe
I'd like to add, perhaps what you want is using the package chrome-launcher which takes care of running the chrome browser.
You can then use puppeteer.connect() to connect the puppeteer-core library to the browser opened and instrument it.
This is what worked for me on Windows
const browser = await puppeteer.launch({
headless: false,
executablePath: 'C:/Program Files/Google/Chrome/Application/chrome.exe',
})
The slashes should be forward facing
Google Safe Browsing shows client side warning page when browsing to a malicious web site.
For example, navigating to https://testsafebrowsing.appspot.com/s/malware.html will display:
However, when using puppeteer this warning page is not shown.
Is it possible to enable this error screen in puppeteer, or to detect it will be shown if using the browser?
I have tried to:
Use the local Chrome instead of Chromium
set ignoreDefaultArgs to true (run without puppeteer default flags):
const browser = await puppeteer.launch({
executablePath: '/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome',
ignoreDefaultArgs: true,
});
Played with various possible related flags see here
However the warning page was never displayed.
Did you try launching puppeteer with the 'userDataDir' argument?
Using a predefined user directory should enable web security capabilities.
const browser = await puppeteer.launch({
executablePath: '/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome',
ignoreDefaultArgs: true,
userDataDir: '/Users/<user>/Library/Application Support/Google/Chrome'
});