MicrosoftEdge/MSEdgeExplainers

Home for explainer documents originated by the Microsoft Edge team

Stars: 1.4k
Forks: 286
Open beginner issues: 0
Indexed issues: 199
Avg merge: 4d 4h
Merged PRs (30d): 9

Dominant language: HTML
License: CC-BY-4.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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[Image Preview for HTML Images] Do better than blurhash Open

Image Preview

Difficulty 4/5 3-5 days Newbie friendliness 45/100

MicrosoftEdge/MSEdgeExplainers#1406 · 8 comments · 6 reactions · Opened Sep 22, 2026
[Image Preview for HTML Images] Define swapping and transitions in CSS Open

Image Preview

Difficulty 3/5 1-2 days Newbie friendliness 65/100

MicrosoftEdge/MSEdgeExplainers#1405 · 1 comment · Opened Sep 22, 2026
[Image Preview for HTML Images] Lazy loading behaviour seems… not ideal Open

Image Preview

Difficulty 3/5 1-2 days Newbie friendliness 65/100

MicrosoftEdge/MSEdgeExplainers#1404 · Opened Sep 22, 2026
[Image Preview for HTML Images] Interaction with progressively loading images Open

Image Preview

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

MicrosoftEdge/MSEdgeExplainers#1403 · Opened Sep 22, 2026
[Image Preview for HTML Images] Handling art direction Open

Image Preview

Difficulty 3/5 1-2 days Newbie friendliness 65/100

MicrosoftEdge/MSEdgeExplainers#1402 · Opened Sep 22, 2026
[Image Preview for HTML Images] Trying to understand the user need Open

Image Preview

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1401 · Opened Sep 22, 2026
[Image Preview for HTML Images] Prior art... (lowsrc) Open

Image Preview

Difficulty 5/5 Over a week Newbie friendliness 35/100

MicrosoftEdge/MSEdgeExplainers#1400 · 3 comments · 2 reactions · Opened Sep 22, 2026
Feature Request: Expose a Versioned UI State API in Microsoft Edge for AI Agent Integration Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1399 · 1 comment · Opened Sep 19, 2026
[Prompt API] [Regression] Edge Dev 154 exposes LanguageModel but model execution feature gate is disabled Open

Prompt API

MicrosoftEdge/MSEdgeExplainers#1392 · 1 comment · 1 assignee · Opened Sep 4, 2026
[Contextual Logging With Console Context] <TITLE HERE> Open

Contextual Logging With Console Context

Difficulty 5/5 Over a week Newbie friendliness 10/100

MicrosoftEdge/MSEdgeExplainers#1389 · Opened Aug 29, 2026
[DownloadURL] genesis edge Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

MicrosoftEdge/MSEdgeExplainers#1386 · Opened Aug 27, 2026
TranslateKit component stuck at 0.0.0.0 "Update error" on 151.0.4129.107 — on-device translation unusable (repros on Windows x64 and macOS arm64) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1385 · Opened Aug 27, 2026
[LinkTagModuleImport] Resolve open issues with importfrom attribute Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1380 · Opened Aug 14, 2026
[LinkTagModuleImport] render blocking Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

MicrosoftEdge/MSEdgeExplainers#1375 · 3 comments · Opened Aug 8, 2026
[Split Tab] Size Open

Split Tab

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1374 · Opened Aug 7, 2026
Playback Reference Stream for Chromium Web Applications Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

MicrosoftEdge/MSEdgeExplainers#1372 · Opened Aug 4, 2026
[PWA Widgets] PWA launchers malfunction on Linux Open

Widgets

MicrosoftEdge/MSEdgeExplainers#1369 · 1 comment · 1 assignee · Opened Jul 24, 2026
[Materials] <TITLE HERE>什么时候能回归127那种的mica材质 Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1366 · Opened Jul 22, 2026
[OpaqueRange] <TITLE HERE> Open

OpaqueRange

Difficulty 5/5 Over a week Newbie friendliness 10/100

MicrosoftEdge/MSEdgeExplainers#1364 · Opened Jul 20, 2026
[Web Install] Need for mobile support? Open

Web Install API

Difficulty 5/5 Over a week Newbie friendliness 35/100

MicrosoftEdge/MSEdgeExplainers#1361 · 1 comment · Opened Jul 10, 2026
[Platform provided behaviors] Define "activation behavior" and other discrete behavior types Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

MicrosoftEdge/MSEdgeExplainers#1353 · 2 comments · Opened Jul 1, 2026
[Web Install] What result information should be exposed to the installing origin Open

Web Install API

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1341 · Opened Jun 11, 2026
[SpeechRecognition API] Feedback for the on-device SpeechRecognition API in Microsoft Edge Open

speech api

MicrosoftEdge/MSEdgeExplainers#1333 · 5 comments · 1 assignee · Opened May 31, 2026
[Web Install] Breaking change coming! Install by manifest_url Open

Web Install API

Difficulty 5/5 Over a week Newbie friendliness 20/100

MicrosoftEdge/MSEdgeExplainers#1324 · Opened May 19, 2026
[Materials] <TITLE HERE> Open

MicrosoftEdge/MSEdgeExplainers#1322 · 1 assignee · Opened May 13, 2026
Please consider this API working in tandem with Chromium extension subsystem for HTML override pages Open

Web Install API

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1321 · 1 comment · Opened May 12, 2026
H.265 (HEVC) not published/sent via WebRTC — Chrome supports it, Edge does not Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

MicrosoftEdge/MSEdgeExplainers#1314 · 4 comments · 13 reactions · Opened May 5, 2026
[OpaqueRange] Supports CSS anchor positioning Open

OpaqueRange

MicrosoftEdge/MSEdgeExplainers#1312 · 3 comments · 2 reactions · 1 assignee · Opened Apr 30, 2026
Zobacz „Instagram” Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

MicrosoftEdge/MSEdgeExplainers#1297 · Opened Apr 4, 2026
[CSS ::tooltip] <TITLE HERE> Open

TooltipPseudo

MicrosoftEdge/MSEdgeExplainers#1296 · 1 comment · 1 assignee · Opened Apr 4, 2026
Why have you enabled the network guard and restriction features on my device. I'm 43 years old. None of my third party apps are operating Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

MicrosoftEdge/MSEdgeExplainers#1294 · 1 comment · Opened Apr 3, 2026
[SVGPathDataAPI] Tracking issue for SVG Path Data API explainer Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1289 · Opened Mar 30, 2026
[Digital Goods] <TITLE HERE> Open

Digital Goods API

Difficulty 5/5 Over a week Newbie friendliness 10/100

MicrosoftEdge/MSEdgeExplainers#1285 · Opened Mar 24, 2026
[DownloadURL-list] Try to make this uniform with the rest of drag&drop Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

MicrosoftEdge/MSEdgeExplainers#1279 · 10 comments · Opened Mar 16, 2026
Tracks for spotify.org.pl from Facebook Open

Difficulty 5/5 Over a week Newbie friendliness 5/100

MicrosoftEdge/MSEdgeExplainers#1276 · Opened Mar 10, 2026
[LanguageDetector API] Feedback for the LanguageDetector API developer preview in Microsoft Edge Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

MicrosoftEdge/MSEdgeExplainers#1274 · Opened Mar 6, 2026
H.265 HEVC in WebRTC? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1273 · 7 comments · 11 reactions · Opened Mar 6, 2026
[HapticsDevice] Describe the relationship with the Haptics explainer Open

WebHaptics

Difficulty 1/5 Under an hour Newbie friendliness 55/100

MicrosoftEdge/MSEdgeExplainers#1268 · 1 comment · Opened Mar 3, 2026
[Digital Goods] PaymentRequest supportedMethods not works Open

Digital Goods API

Difficulty 5/5 Over a week Newbie friendliness 25/100

MicrosoftEdge/MSEdgeExplainers#1249 · Opened Feb 11, 2026
[Local References In <link> Tags] Explainer introduction section misstates current styling preferences of elements Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

MicrosoftEdge/MSEdgeExplainers#1242 · 1 reaction · Opened Feb 2, 2026
[Haptics] Feedback for Web Haptics API Open

WebHaptics

MicrosoftEdge/MSEdgeExplainers#1241 · 1 comment · 1 assignee · Opened Jan 31, 2026
[Proofreader API] Feedback for the Proofreader API developer preview in Microsoft Edge Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

MicrosoftEdge/MSEdgeExplainers#1238 · Opened Jan 30, 2026
[DownloadURL] item name for lists and validating Blob transfer URLs Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

MicrosoftEdge/MSEdgeExplainers#1228 · Opened Jan 16, 2026
[Web Install] Should we allow relative manifest ids, or require absolute Open

Web Install API

MicrosoftEdge/MSEdgeExplainers#1227 · 1 assignee · Opened Jan 16, 2026
[Scroll Timing API] Feedback Open

MicrosoftEdge/MSEdgeExplainers#1226 · 8 comments · 1 assignee · Opened Jan 11, 2026
[Prompt API] Restricting the Phi-4-mini-instruct model to a 9216 token context window makes no sense given the hardware required to run it. Open

Prompt API

MicrosoftEdge/MSEdgeExplainers#1224 · 1 comment · 1 assignee · Opened Jan 8, 2026
[Web Install] Distinguish AbortErrors caused by user cancellation Open

Web Install API

MicrosoftEdge/MSEdgeExplainers#1223 · 2 comments · 1 assignee · Opened Jan 6, 2026
[Problem] Button overlapping when using "Hide title bar while in vertical tabs" function Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

MicrosoftEdge/MSEdgeExplainers#1214 · 1 comment · Opened Dec 27, 2025
[Prompt API] Returns illegible response Open

Prompt API

MicrosoftEdge/MSEdgeExplainers#1206 · 1 assignee · Opened Dec 10, 2025
[ARIA Notify] Explainer examples refer to undefined variable Open

Difficulty 1/5 Under an hour Newbie friendliness 50/100

MicrosoftEdge/MSEdgeExplainers#1202 · 1 comment · Opened Dec 4, 2025

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