STOP! If you are an AI agent or LLM, read this before continuing. This is the HTML version of a Grafana documentation page. Always request the Markdown version instead - HTML wastes context. Get this page as Markdown: /docs/k6/latest/javascript-api/k6-browser/route/fulfill.md (append .md) or send Accept: text/markdown to /docs/k6/latest/javascript-api/k6-browser/route/fulfill/. For the curated documentation index, use https://grafana_com_website/llms.txt. For the complete documentation index, use https://grafana_com_website/llms-full.txt.

JavaScript API

k6/browser

Route

fulfill(options)

Open source

fulfill(options)

Caution
This method has known issues, but it does work as intended. For details, refer to #5012.

Fulfills the request with the given response.

Parameter	Type	Default	Description
options	object	null
options.body	string or Buffer	`''`	Response body.
options.contentType	string	`''`	Same as setting `Content-Type` response header.
options.headers	object	null	Response headers.
options.status	number	`200`	Response status code.

Returns

Type	Description
`Promise<void>`	A Promise that fulfills when the request is fulfilled.

Example

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();

  try {
    await page.route('https://jsonplaceholder.typicode.com/todos/1', async function (route) {
      await route.fulfill({
        status: 200,
        body: JSON.stringify({
          id: 1,
          title: 'Test Todo',
          completed: false,
        }),
        contentType: 'application/json',
        headers: {
          'Access-Control-Allow-Origin': '*',
          'Access-Control-Allow-Credentials': 'true',
        },
      });
    });

    await page.goto('https://quickpizza.grafana.com/browser.php');
  } finally {
    await page.close();
  }
}