Open Web Docs

Open Web Docs supports web platform documentation for the benefit of web developers & designers worldwide.

Website: https://openwebdocs.org
GitHub: https://github.com/openwebdocs
Donate: https://opencollective.com/open-web-docs
Bluesky: https://bsky.app/profile/openwebdocs.org

Last Notes

2026-09-22 08:05:04 UTC

Microsoft Edge sponsors Open Web Docs for the 7th consecutive year.
Continued support enables us to create and maintain web platform documentation and browser compatibility data. Thank you, Microsoft Edge!
https://openwebdocs.org/content/posts/microsoft-2027-sponsorship/

2026-06-23 16:13:52 UTC

We've completed our work on Web Security documentation on @npub1azl…tw5z !
The entire MDN content tree has been reworked and now features in-depth information on:
- Attacks
- Defenses
- Authentication
- Threat Modeling
↪️ Blog post https://openwebdocs.org/content/posts/security-docs-sovereign-tech-agency/

2026-04-20 09:25:09 UTC

We've updated MDN's guide on Subresource Integrity (SRI) and added docs for the HTML `integrity` attribute.
The SRI docs now talk about the fact that you can provide multiple `integrity` values (using the same or different hash functions) and how browsers will handle that.
Thanks to @npub19qj…0ztu for your feedback! We're looking forward to improved SRI support in @npub1l0c…kt92!
https://developer.mozilla.org/en-US/docs/Web/Security/Defenses/Subresource_Integrity

2026-04-01 11:23:54 UTC

We've written a new guide on Fetch Metadata!
Fetch metadata is a group of HTTP request headers.
They tell you if requests are navigation between documents, request for a subresource, or requests made from JavaScript, and whether they are same-origin, or same-site, or from completely different sites.
Thanks to this information, you can implement defenses against cross-origin attacks such as cross-site request forgeries (CSRF) and various cross-site leaks.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/Fetch_metadata

2025-09-30 12:04:42 UTC

We're happy to share that @npub1yng…nhrk invests in Web Security and Privacy Documentation!
Over the coming year, Open Web Docs will be working on creating and updating Security and Privacy documentation for web developers on @npub1azl…tw5z.
Full announcement: https://openwebdocs.org/content/posts/stf-investment-2025/

2025-04-02 10:18:25 UTC

Reducing the transport size of HTTP responses with a compression dictionary.
New MDN article written by @npub1tcq…8yp7 and reviewed by Will Bamberg.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/Compression_dictionary_transport

2025-01-30 14:58:31 UTC

- reply

In 2024, thanks to an investment from @npub1yng…nhrk, we systematically collected compatibility data for 30 browser releases throughout the entire year. As a result, whenever browsers shipped new features, the data was already available on @npub1azl…tw5z, caniuse.com, and other projects.

2025-01-30 14:00:29 UTC

Open Web Docs 2024 Report
We're reflecting on our fourth year of ensuring the long-term health of web platform documentation
https://openwebdocs.org/content/reports/2024/

2024-12-18 10:44:41 UTC

Learn about XSS for XMAS!
We created a new MDN page about Cross-site scripting: https://developer.mozilla.org/en-US/docs/Web/Security/Attacks/XSS
#websecurity