puppeteer/docs/api/puppeteer.networkconditions.md

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networkConditions

networkConditions variable

A list of network conditions to be used with page.emulateNetworkConditions(networkConditions). Actual list of predefined conditions can be found in src/common/NetworkConditions.ts.

Signature:

networkConditions: Readonly<{
  'Slow 3G': NetworkConditions;
  'Fast 3G': NetworkConditions;
}>;

Example

const puppeteer = require('puppeteer');
const slow3G = puppeteer.networkConditions['Slow 3G'];

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.emulateNetworkConditions(slow3G);
  await page.goto('https://www.google.com');
  // other actions...
  await browser.close();
})();