mdn

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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100 Open Issues Need Help Last updated: Jul 8, 2026

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Mobile and desktop parity for the select element about 4 hours ago
help wanted Content:HTML goal: up-to-date
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Cannot prevent cancel when user presses Escape twice 1 day ago
help wanted Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
No information about AbortSignal.any (AbortSignal.timeout, Promise.race, Promise.any) lack of unsubscription capabilities and its consequences. 1 day ago
help wanted Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Article on overflowing content needs updating 3 days ago
help wanted Content:Learn:CSS goal: up-to-date
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
history.go() link is bringing to history.forward() page instead 3 days ago
good first issue Content:CSS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Typo 3 days ago
good first issue Content:Learn:Forms
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Nonce caching/generation on edge proxies or CDNs 7 days ago
help wanted Content:HTTP
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
WebAssembly.Global constructor for externref does not default to a null value 7 days ago
help wanted Content:wasm
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
FedCM docs don't document active mode properly 7 days ago
help wanted Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Web Storage API documentation pages fail to mention state partitioning 7 days ago
help wanted Content:WebAPI effort: medium goal: up-to-date
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Fix subject-verb agreement in Promise documentation 7 days ago
good first issue Content:JS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
"SVGSVGElement.viewBox.baseVal": when viewBox unset, it is null in FF but a 0-SVGRect in Chrome 8 days ago
help wanted Content:WebAPI needs BCD update
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
ElementInternals.labels: No screen reader information 8 days ago
help wanted Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
script media feature should be scripting instead 8 days ago
good first issue Content:CSS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
`GPUCommandEncoder.copyTextureToTexture` does not match current WebGPU spec 8 days ago
help wanted Content:WebAPI area: WebGPU
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Improve the list of "What requests use CORS" (mention the `crossorigin` attribute) 8 days ago
help wanted Content:HTTP
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Congestion Control's content lacks context and clarity. 8 days ago
help wanted Content:Performance
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
The stacking context that isn't? 8 days ago
good first issue Content:CSS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Improve Example Syntax Readability 8 days ago
good first issue Content:Learn:Forms
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Write a glossary entry for DOH 8 days ago
help wanted Content:Glossary
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
It's unclear whether embedding PDF files is nowadays better/more secure with iframe or "traditional" embed/object HTML tags 10 days ago
help wanted Content:HTML Content:Learn:HTML
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Cache-Control private is unnecessary with no-store given 10 days ago
good first issue Content:HTTP
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Page lacks information on how to set a lower storage limit or how to disable IndexedDB and OPFS entirely 10 days ago
help wanted Content:WebAPI area: File/File System
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Regexp (?!) CSS selector analogy doesn't hold for last child elements 10 days ago
good first issue Content:CSS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Is 'Use pagehide as a fallback' clause still needed? 11 days ago
good first issue Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
No Browser Implements screenX, screenY according to the spec 11 days ago
help wanted Content:WebAPI
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Issues on Content-Digest page 11 days ago
help wanted Content:HTTP
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Issues on Repr-Digest page 11 days ago
help wanted Content:HTTP
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Improve voice-change-o-matic documentation & tutorial on creating audio filters 11 days ago
help wanted Content:WebAPI area: Web Audio
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
KeyboardEvent: ctrlKey false on key up of the control key 12 days ago
help wanted Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
HTMLTableElement insertRow() has inaccurate description of default behavior 16 days ago
good first issue Content:WebAPI effort: small
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
[CSS] Add documentation for `grid-lanes` and `inline-grid-lanes` 18 days ago
help wanted Content:CSS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
ruby-position: inter-character description incomplete, no full Safari support 19 days ago
help wanted Content:CSS needs BCD update
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
image.x and image.y properties are unrelated to table-column styling about 1 month ago
help wanted Content:WebAPI area: DOM/CSSOM
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Mention Firefox Anti-fingerprinting on `getImageData()` page about 1 month ago
help wanted Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Temporal.ZonedDateTime.prototype.add(): incorrect example for offset ambiguity resolution during fall-back DST transition about 1 month ago
help wanted Content:JS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Incorrect example for `\q{}` in regular expression character class about 2 months ago
help wanted Content:JS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
The link target of the "rotate" attribute of SVG <text> element looks improper 2 months ago
help wanted Content:SVG
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Misleading sentence in dispatchEvent() page 2 months ago
good first issue Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Explain SVG geometry properties 2 months ago
help wanted Content:SVG
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
document.frames doesn't exist 3 months ago
good first issue Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
wrong CC value for table "AVC profiles" 3 months ago
good first issue Content:Media
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
showNotification: clarify difference between badge, icon, and image 3 months ago
help wanted Content:WebAPI area: Notifications
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
HTMLButtonElement - setCustomValidity(): Specify button type availability 3 months ago
help wanted Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Issue with AggregateError: Link Polyfill of AggregateError in core-js points to wrong anchor 3 months ago
good first issue Content:JS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
font-size-adjust: Add note about scaling behavior of font family weights and styles 3 months ago
help wanted Content:CSS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Outdated note about non-support 3 months ago
good first issue Content:SVG goal: up-to-date
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
HTTP Headers overview links to non-documented Signature headers 4 months ago
good first issue Content:HTTP
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
onCommand: Add tab - add example 4 months ago
help wanted Content:WebExt
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
WebTransport serverCertificateHashes value can't be string 4 months ago
help wanted Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Native Messaging documentation can be more explicit about the location of application manifest 4 months ago
help wanted Content:WebExt p2
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Specificity is not an algorithm 4 months ago
help wanted Content:CSS
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Stylesheet Definition in Glossary 4 months ago
help wanted Content:Glossary
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
WebTransport server implementation 4 months ago
help wanted Content:WebAPI document not written area: WebTransport
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Native Messaging add-on tutorial does not specify how to view console output. 4 months ago
help wanted Content:WebExt
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
wrong method in example 4 months ago
good first issue Content:WebAPI
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
audioData.copyTo is missing format option 4 months ago
help wanted Content:WebAPI area: Web Audio
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Wording around DynamicsCompressorNode use-cases is oversimplified / partially misleading 4 months ago
help wanted Content:WebAPI area: Web Audio
mdn/content
10.9K

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.

Markdown
#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Example should make it clear only one thing is replaced for strings 4 months ago
good first issue Content:JS
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Service Worker navigation preload sample code error 5 months ago
help wanted Content:WebAPI
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
ESLint (in)compatibilities have changed 5 months ago
help wanted Content:Learn:Client-side
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
"Document: exitPictureInPicture() method" Examples has a problem 5 months ago
good first issue Content:WebAPI
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
RTCEncodedVideoFrame type is now EncodedVideoChunkType, which does not allow "empty" as a value 5 months ago
help wanted Content:WebAPI area: WebRTC
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
include_subdomains description for NEL header is inaccurate 5 months ago
help wanted Content:HTTP
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Removing or reducing legacy info on Firefox UA string reference 5 months ago
help wanted Content:HTTP
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Code example and instructions differ 5 months ago
good first issue Content:Games
mdn/content
10.9K

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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Add missing Wasm docs: Table instructions 5 months ago
help wanted document not written Content:wasm
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Typo "order-style" should be border-style 5 months ago
good first issue Content:CSS
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
`CanvasRenderingContext2D.canvas` can't be null 5 months ago
good first issue Content:WebAPI
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
NEXT Button not working properly 5 months ago
good first issue Content:Learn:CSS
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
[Grammer issue] 5 months ago
good first issue Content:Learn:Django
mdn/content
10.9K

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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
Block flow direction does not depend on inline direction 5 months ago
help wanted Content:CSS
mdn/content
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Writing mode example uses wrong script 5 months ago
help wanted Content:CSS
mdn/content
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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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#css#documentation#html#http#javascript#learning#mdn#reference#web-development#web-standards
lexical `this` is mentioned but the associated example doesn't demonstrate it 5 months ago
help wanted Content:WebAPI
mdn/content
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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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Document accessibility considerations for Custom Highlight API 5 months ago
help wanted Content:WebAPI goal: best practices
mdn/content
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Clarify image.decode() failure on lazy-loaded images 5 months ago
help wanted Content:WebAPI area: DOM/CSSOM
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:target-current is no longer limited to just `::scroll-marker`s 5 months ago
help wanted Content:CSS goal: up-to-date
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Clarify 'extractable' parameter behavior when 'SubtleCrypto.generateKey' is used with asymmetric key algorithms 5 months ago
help wanted Content:WebAPI area: Web Crypto goal: clarity
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lang attribute does not default to empty string 5 months ago
help wanted Content:HTML goal: accuracy
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offsetParent is not always null for position: fixed elements 5 months ago
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Change arguments to CookieStoreManager's subscribe method 6 months ago
help wanted Content:WebAPI effort: small accepting PR
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setHTML() / Sanitizer explictly call out that re-parsing (mXSS) is still a danger 6 months ago
help wanted Content:WebAPI
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`Document.querySelector()` vs. `Element.querySelector()` 6 months ago
good first issue Content:WebAPI
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Update Masonry layout guide for css-grid-3 "Masonry Switch Syntax" changes 6 months ago
help wanted Content:CSS goal: up-to-date
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Document position-visibility: anchors-valid 6 months ago
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Typo of element id on "Setting a named scroll progress timeline" example section 6 months ago
good first issue Content:CSS
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<absolute-size> Specification link is incorrect 6 months ago
good first issue Content:CSS
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The description about `break-before: always` looks wrong 6 months ago
good first issue Content:CSS
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How to build custom form controls: JS example is not accessible 6 months ago
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"Each property name before colons is an identifier (either a name, a number, or a string literal)" 6 months ago
good first issue Content:JS
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`<pre readonly>` in section "Event handlers" 6 months ago
good first issue Content:Learn:JavaScript
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Inaccurate info in "Example 1" on creating new stacking context 7 months ago
help wanted Content:CSS
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Misleading "Example 3" about stacking context 7 months ago
help wanted Content:CSS goal: clarity
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Topic on setting HTTP priority of resource requests 7 months ago
help wanted document not written Content:Performance
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Inaccurate info in example on creating new stacking context 7 months ago
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Add accessibility considerations to the HTML "autocomplete" attribute page 7 months ago
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Confusing/misleading example 7 months ago
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Dialog closure via Escape key now triggers close event 7 months ago
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remove can indeed trigger blur 7 months ago
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Fix grammar errors in Web Audio API and HTML Table Element documentation 7 months ago
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