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⚠️ This is the archived documentation for k6 v0.44. Go to the latest version.

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 { chromium } from 'k6/experimental/browser';
export default async function () {
const browser = chromium.launch();
const page = browser.newPage();
await page.goto('https://test.k6.io/browser.php');
page.emulateVisionDeficiency('blurredVision');
}