P1b-P1d: Missing API Surfaces — caches, clipboard, dataLayer, sendBeacon Verbesserung #81

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opened 2026-06-18 17:17:56 +00:00 by Artur · 1 comment

Artur commented

2026-06-18 17:17:56 +00:00

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P1b-P1d: Missing API Surfaces (Small APIs)

Priority: MEDIUM
Betrifft: wasmbyexample.dev (caches), web.dev (clipboard), alle GTM-Seiten (dataLayer)
Aufwand: ~3h total

Übersicht

Drei kleine API-Lücken die auf verschiedenen Sites auftreten.

P1b: `navigator.clipboard`

navigator.clipboard = navigator.clipboard || {
  writeText: async (text) => undefined,
  readText: async () => '',
  read: async () => [],
  write: async () => undefined,
};

P1c: `window.caches` (CacheStorage)

window.caches = new Proxy({}, {
  get(_target, prop) {
    if (prop === 'open') return async (name) => createNoopCache(name);
    if (prop === 'match') return async (request) => undefined;
    if (prop === 'has') return async (name) => false;
    if (prop === 'keys') return async () => [];
    if (prop === 'delete') return async (name) => true;
    return undefined;
  }
});

P1d: `window.dataLayer` default

if (!window.dataLayer) window.dataLayer = [];
// Google Tag Manager erwartet dataLayer.push()

Akzeptanzkriterien

navigator.clipboard.writeText('text') resolved ohne Error
window.caches.open('v1') returned ein Cache-ähnliches Objekt
window.dataLayer existiert und .push() funktioniert
Unit-Tests für alle drei

Betroffene Dateien

Datei	Änderung
`src/fakes/apis.ts` oder `src/pages/page.ts`	caches, clipboard, dataLayer
`tests/unit/sprint17-missing-apis.test.ts`	5+ Tests

## P1b-P1d: Missing API Surfaces (Small APIs) **Priority:** MEDIUM **Betrifft:** wasmbyexample.dev (caches), web.dev (clipboard), alle GTM-Seiten (dataLayer) **Aufwand:** ~3h total ### Übersicht Drei kleine API-Lücken die auf verschiedenen Sites auftreten. ### P1b: `navigator.clipboard` ```typescript navigator.clipboard = navigator.clipboard || { writeText: async (text) => undefined, readText: async () => '', read: async () => [], write: async () => undefined, }; ``` ### P1c: `window.caches` (CacheStorage) ```typescript window.caches = new Proxy({}, { get(_target, prop) { if (prop === 'open') return async (name) => createNoopCache(name); if (prop === 'match') return async (request) => undefined; if (prop === 'has') return async (name) => false; if (prop === 'keys') return async () => []; if (prop === 'delete') return async (name) => true; return undefined; } }); ``` ### P1d: `window.dataLayer` default ```typescript if (!window.dataLayer) window.dataLayer = []; // Google Tag Manager erwartet dataLayer.push() ``` ### Akzeptanzkriterien - [ ] `navigator.clipboard.writeText('text')` resolved ohne Error - [ ] `window.caches.open('v1')` returned ein Cache-ähnliches Objekt - [ ] `window.dataLayer` existiert und `.push()` funktioniert - [ ] Unit-Tests für alle drei ### Betroffene Dateien | Datei | Änderung | |-------|----------| | `src/fakes/apis.ts` oder `src/pages/page.ts` | caches, clipboard, dataLayer | | `tests/unit/sprint17-missing-apis.test.ts` | 5+ Tests |

Artur added the

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2026-06-18 17:17:56 +00:00

glow was assigned by Artur

2026-06-18 17:17:56 +00:00

Artur referenced this issue from a commit

2026-06-18 17:26:51 +00:00

Sprint 16: Convergence Gap Fixes — ES Module, HTML Filter, currentScript, Animate

Artur closed this issue

2026-06-18 17:27:09 +00:00

Artur commented

2026-06-18 17:27:09 +00:00

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Owner

✅ Bereits implementiert — Alle Small APIs vorhanden

API	Fundort	Status
`window.caches`	`page.ts:262-274`	✅ Noop CacheStorage
`window.dataLayer`	`page.ts:276-279`	✅ Default `[]`
`navigator.clipboard`	`navigator.ts:306`	✅ `writeText/readText`
`navigator.sendBeacon`	`beacon.ts` + `navigator.ts:364`	✅ Instrumentiert
`ResizeObserver`	`observers/resize-observer.ts`	✅ Fake (viewport-groesse)

Status: Geschlossen

✅ **Bereits implementiert** — Alle Small APIs vorhanden | API | Fundort | Status | |-----|---------|--------| | `window.caches` | `page.ts:262-274` | ✅ Noop CacheStorage | | `window.dataLayer` | `page.ts:276-279` | ✅ Default `[]` | | `navigator.clipboard` | `navigator.ts:306` | ✅ `writeText/readText` | | `navigator.sendBeacon` | `beacon.ts` + `navigator.ts:364` | ✅ Instrumentiert | | `ResizeObserver` | `observers/resize-observer.ts` | ✅ Fake (viewport-groesse) | **Status:** Geschlossen

Artur referenced this issue

2026-06-18 18:17:58 +00:00

Phase 2: Production Engine — Epic (ES Module, Performance, API Completeness) #56