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Documentation Grafana k6 JavaScript API k6/browser Page emulateVisionDeficiency(type)

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).

Returns

Example

JavaScript Copy

import { browser } from 'k6/browser';

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

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

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