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Documentation

setViewportSize(viewportSize)

Open source

setViewportSize(viewportSize)

This will update the page’s width and height.

Parameter	Type	Description
viewportSize	Object	An object containing the additional HTTP headers. All header values must be strings.
viewportSize.width	number	Page width in pixels.
viewportSize.height	number	Page height in pixels.

Example

import { browser } from 'k6/experimental/browser';

export const options = {
  scenarios: {
    browser: {
      executor: 'shared-iterations',
      options: {
        browser: {
          type: 'chromium',
        },
      },
    },
  },
};

export default async function () {
  const page = browser.newPage();

  page.setViewportSize({
    width: 640,
    height: 480,
  });
  await page.goto('https://test.k6.io/browser.php');
}