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mdn/content

The official source for MDN Web Docs content. Home to over 14,000 pages of documentation about HTML, CSS, JS, HTTP, Web APIs, and more.

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 (23,202 forks)
Indexed issues
 (94 indexed issues)
open beginner issues
 (77 open beginner issues)
Latest indexed
Jun 11, 2026
Last GitHub push
Aug 15, 2026
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Contributing guide
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Code of conduct
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Markdown
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 (Avg merge 7d 3h) (147 merged PRs in 30d)
Beginner labels
help wantedgood first issue

Issues

17 closed indexed issues

Closed
document.frames doesn't exist
Content:WebAPIgood first issue
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #44330 · Jun 1, 2026 · Markdown · 10,935 stars

1 comment0 reactions0 assignees
Closed
wrong CC value for table "AVC profiles"
Content:Mediagood first issue
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #44247 · May 25, 2026 · Markdown · 10,935 stars

3 comments0 reactions0 assignees
Closed
Misleading sentence in dispatchEvent() page
Content:WebAPIgood first issue
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #43519 · Mar 22, 2026 · Markdown · 10,935 stars

7 comments0 reactions0 assignees
Closed
Document accessibility considerations for Custom Highlight API
Content:WebAPIgoal: best practiceshelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #43408 · Mar 11, 2026 · Markdown · 10,935 stars

3 comments0 reactions0 assignees
Closed
Service Worker navigation preload sample code error
Content:WebAPIhelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #43055 · Feb 8, 2026 · Markdown · 10,935 stars

0 comments0 reactions0 assignees
Closed
Mention Firefox Anti-fingerprinting on `getImageData()` page
Content:WebAPIhelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #39084 · Apr 11, 2025 · Markdown · 10,935 stars

0 comments0 reactions0 assignees
Closed
List other URL-based payment method identifiers
Content:WebAPIhelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #38581 · Mar 11, 2025 · Markdown · 10,935 stars

5 comments0 reactions0 assignees
Closed
Opus audio codec in MP4 incorectly listed as "mp4a.ad"
Content:Mediagoal: accuracyhelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #36771 · Nov 13, 2024 · Markdown · 10,935 stars

0 comments0 reactions0 assignees
Closed
inconsistent: `spinbutton` isn't the only read-write range
Content:Accessibilitygoal: consistencyhelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #32981 · Apr 6, 2024 · Markdown · 10,935 stars

0 comments0 reactions0 assignees
Closed
feGaussianBlur needs guidance about setting height and width
Content:SVGeffort: mediumgoal: completenesshelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #24169 · Feb 4, 2023 · Markdown · 10,935 stars

0 comments0 reactions0 assignees