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#3886 studio: no favicon — /favicon.ico 404s and the page declares no icon
Opened by sntxrr · 10/24/2026
Defect
studio serve has no favicon. Browsers request /favicon.ico and get a 404 with a JSON body, and the page <head> has no <link rel="icon">, so the tab shows the browser's generic icon. With studio open next to other tools, its tab is hard to find.
Evidence (@swamp/stagecraft/studio 2026.09.30.1, swamp 20261023.183232.0)
GET /favicon.ico→404 application/jsonGET /favicon.svg→404- The served HTML has no
<link rel="icon">
Suggested fix
Ship an SVG icon with the existing /assets/ and reference it with <link rel="icon" type="image/svg+xml" href="/assets/favicon.svg">. Also answer /favicon.ico (or redirect it), since some clients request that path whatever the page declares. The icon is same-origin, so it passes studio's Host/Origin and CORP checks unchanged.
Upstream repository: https://github.com/swamp-club/swamp-extensions
Environment
- Extension:
@swamp/stagecraft@2026.10.15.2 - swamp:
20261023.183232.0-sha.c0e1560b - OS:
darwin(aarch64) - Deno:
2.9.8 - Shell:
/bin/zsh
Open
No activity in this phase yet.
system commented 10/24/2026, 7:03:40 PM
Classified automatically when this issue was filed.
- Source: Extensions
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