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</details>
Technique taken [**from this writeup**](https://blog.arkark.dev/2022/11/18/seccon-en/#web-spanote)**.**
* It stores a resource fetched from the web. The cache **doesn't include the JavaScript heap**.
* The cache is also used for back/forward navigations to skip communication costs.
As a interesting point of disk cache, the **cache includes** not only the HTTP response rendered to a web page, but also **those fetched with `fetch`**. In other words, if you a**ccess the URL for a fetched** resource, the **browser will render the resource** on the page.
There is another important point. If both disk cache and bfcache are valid for an accessed page at back/forward navigations, the **bfcache has priority over the disk cache**. So, if you need to access a page stored in both caches but you want to use the one from the disk, you need to somehow **disable bfcache.**
bfcache is disabled by [default options](https://github.com/puppeteer/puppeteer/blob/v19.2.0/packages/puppeteer-core/src/node/ChromeLauncher.ts#L175) of puppeteer.
Firstly, you have to disable bfcache[\[2\]](https://blog.arkark.dev/2022/11/18/seccon-en/#fn2). There are many conditions where bfcache is disabled, the list is:
<summary><ahref="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ HackTricks LIVE Twitch</strong></a><strong>Wednesdays 5.30pm (UTC) 🎙️ -</strong><ahref="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**
* **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).
