Make Favoritter installable as a Progressive Web App with offline
static asset caching and Web Share Target API for Android.
New files:
- internal/handler/pwa.go: handlers for manifest, service worker,
and share target
- web/static/sw.js: service worker (cache-first static, network-first
HTML) with {{BASE_PATH}} placeholder for subpath deployments
- web/static/icons/: placeholder PWA icons (192, 512, 512-maskable)
Key design decisions:
- Share target uses GET (not POST) to avoid CSRF token issues — Android
apps cannot provide CSRF tokens
- Manifest is generated dynamically to inject BasePath into start_url,
scope, icon paths, and share_target action
- Service worker served at /sw.js with Cache-Control: no-cache and
BasePath injected via string replacement
- handleShare extracts URLs from Android's "text" field as fallback
(many apps put the URL there instead of "url")
- handleFaveNew replaced with handleFaveNewPreFill that reads url,
description, notes from query params (enables share + bookmarklets)
- SW registration in app.js reads base-path from <meta> tag (CSP-safe)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Tag autocomplete combobox pattern (WCAG 2.1.1, 4.1.2, 4.1.3):
- Add role="combobox", aria-expanded, aria-haspopup to tag input
- Implement arrow key navigation (up/down) through suggestions
- Add Space key support alongside Enter for selecting tags
- Manage aria-activedescendant to track highlighted option
- Add Escape to close suggestions
- Add aria-live="polite" status region announcing suggestion count
- Add aria-selected state on options
- Tag suggestions now have stable IDs for activedescendant
Focus visibility (WCAG 2.4.7):
- Remove outline:none on tag suggestions, replace with visible
2px solid outline on :focus-visible
Contrast (WCAG 1.4.3):
- Replace opacity:0.5 on disabled rows with muted text color
and strikethrough on username (maintains 4.5:1 ratio)
Structure and semantics (WCAG 1.3.1):
- Fix heading hierarchy H1→H3 skip in import.html (now H2)
- Replace <nav> misuse for fave actions with div[role="group"]
- Add aria-label="Administrasjonsmeny" to admin dashboard nav
- Wrap admin users table in responsive scrollable region
- Remove redundant "Bilde for:" prefix from image alt text
- Make error page H1 descriptive: "Feil 404: Ikke funnet"
- Add .sr-only utility class for screen-reader-only content
- Add hreflang="en" to English-language external link
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
