emulateVisionDeficiency(type)

This emulates your website with the specified vision deficiency type.

The supported types are:

• none: default.
• blurredVision: where vision is less precise.
• protanopia: the inability to perceive any red light.
• deuteranopia: the inability to perceive any green light.
• tritanopia: the inability to perceive any blue light.
• achromatopsia: the inability to perceive any color except for shades of grey (extremely rare).

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();
  
  await page.goto('https://test.k6.io/browser.php');
  page.emulateVisionDeficiency('blurredVision');
}