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How to correctly remove the window.navigator.webdriver of Pyppeteer, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, I hope you can gain something.

Times have changed, and this approach has been invalidated with the upgrade of the Chrome version.

Today we'll talk about how to hide Pyppeteer.

Today's method is very simple and does not need to modify the source code.

If you read the Selenium version of the article, you should see that our principle is to execute a piece of JavaScript code through CDP. There is a keyword in this code called addScriptToEvaluateOnNewDocument. Means to add a script that is executed when a new document is opened.

Let's remember this keyword EvaluateOnNewDocument. Now open Pyppeteer's official API [1], and search evaluateOnNewDocument to see that Pyppeteer also supports this feature.

This makes the file very simple, so let's call it directly in Pyppeteer and pass the JavaScript code:

Import asyncio

From pyppeteer import launch

Async def main ():

Browser = await launch (executablePath='/Applications/Google Chrome.app/Contents/MacOS/Google Chrome', headless=False)

Page = await browser.newPage ()

Await page.evaluateOnNewDocument (''() = > {

Object.defineProperty (navigator, 'webdriver', {

Get: () = > undefined

})

}

'')

Await page.goto ('http://exercise.kingname.info')

Input ('press enter to close the window after checking.')

Await browser.close ()

Asyncio.run (main ())

The effect of the code is shown in the following figure:

Solve the problem perfectly. And as long as you do not open a new tab or window, only open a new URL or refresh the page in the current window, the js code takes effect automatically and does not need to be repeated.

The key code is:

Await page.evaluateOnNewDocument (''() = > {

Object.defineProperty (navigator, 'webdriver', {

Get: () = > undefined

})

}

'')

Let Pyppeteer execute the JavaScript function in the parameters before all the js that comes with the site executes when each new page is loaded.

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