puppeteer/website/versioned_docs/version-19.6.0/guides/chrome-extensions.md
release-please[bot] e13e9647fc
chore: release main (#9501)
🤖 I have created a release *beep* *boop*
---


<details><summary>puppeteer: 19.6.0</summary>

##
[19.6.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-v19.5.2...puppeteer-v19.6.0)
(2023-01-23)


### Miscellaneous Chores

* **puppeteer:** Synchronize puppeteer versions


### Dependencies

* The following workspace dependencies were updated
  * dependencies
    * puppeteer-core bumped from 19.5.2 to 19.6.0
</details>

<details><summary>puppeteer-core: 19.6.0</summary>

##
[19.6.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-core-v19.5.2...puppeteer-core-v19.6.0)
(2023-01-23)


### Features

* **chromium:** roll to Chromium 110.0.5479.0 (r1083080)
([#9500](https://github.com/puppeteer/puppeteer/issues/9500))
([06e816b](06e816bbfa)),
closes [#9470](https://github.com/puppeteer/puppeteer/issues/9470)
* **page:** Adding support for referrerPolicy in `page.goto`
([#9561](https://github.com/puppeteer/puppeteer/issues/9561))
([e3d69ec](e3d69ec554))


### Bug Fixes

* firefox revision resolution should not update chrome revision
([#9507](https://github.com/puppeteer/puppeteer/issues/9507))
([f59bbf4](f59bbf4014)),
closes [#9461](https://github.com/puppeteer/puppeteer/issues/9461)
* improve screenshot method types
([#9529](https://github.com/puppeteer/puppeteer/issues/9529))
([6847f88](6847f8835f))
</details>

---
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Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
2023-01-23 17:48:02 +01:00

1.2 KiB

Chrome Extensions

Puppeteer can be used for testing Chrome Extensions.

:::caution

Extensions in Chrome/Chromium currently only work in non-headless mode and experimental Chrome headless mode.

:::

The following is code for getting a handle to the background page of an extension whose source is located in ./my-extension:

import puppeteer from 'puppeteer';
import path from 'path';

(async () => {
  const pathToExtension = path.join(process.cwd(), 'my-extension');
  const browser = await puppeteer.launch({
    headless: 'chrome',
    args: [
      `--disable-extensions-except=${pathToExtension}`,
      `--load-extension=${pathToExtension}`,
    ],
  });
  const backgroundPageTarget = await browser.waitForTarget(
    target => target.type() === 'background_page'
  );
  const backgroundPage = await backgroundPageTarget.page();
  // Test the background page as you would any other page.
  await browser.close();
})();

:::note

Chrome Manifest V3 extensions have a background ServiceWorker of type 'service_worker', instead of a page of type 'background_page'.

:::

:::note

It is not yet possible to test extension popups or content scripts.

:::