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feat(search): Microdata-Fallback erkennt rezeptwelt & Co.
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Aus dem Log (q="Königsberger klopse"): 11 rezeptwelt-Treffer kamen durch
alle URL-Filter, wurden aber von hasRecipeJsonLd als non-recipe gedroppt.
Ursache: rezeptwelt.de nutzt Microdata (itemtype=schema.org/Recipe) statt
application/ld+json.

- hasRecipeJsonLd → hasRecipeMarkup: prüft jetzt zusätzlich per Regex
  auf itemtype=(https?://)schema.org/Recipe. Alter Export bleibt als
  Deprecated-Weiterleitung erhalten.
- Log zeigt jetzt auch die ersten 3 gedropten URLs als dropped samples,
  damit neue Problem-Domains einfach zu diagnostizieren sind.
- Migration 010 räumt alle thumbnail_cache-Einträge mit has_recipe=0 aus
  — die waren mit dem alten Check falsch-negativ und müssen neu
  klassifiziert werden.

Tests: 4 neue Cases für hasRecipeMarkup (JSON-LD, http/https Microdata,
Negativ-Fall).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
hsiegeln
2026-04-18 08:32:18 +02:00
parent 15c15c8494
commit 2e196b4834
4 changed files with 63 additions and 5 deletions
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33
tests/unit/json-ld-recipe.test.ts
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@@ -2,7 +2,10 @@ import { describe, it, expect } from 'vitest';
import { readFileSync } from 'node:fs';
import { dirname, join } from 'node:path';
import { fileURLToPath } from 'node:url';
import { extractRecipeFromHtml } from '../../src/lib/server/parsers/json-ld-recipe';
import {
extractRecipeFromHtml,
hasRecipeMarkup
} from '../../src/lib/server/parsers/json-ld-recipe';
const here = dirname(fileURLToPath(import.meta.url));
@@ -42,3 +45,31 @@ describe('extractRecipeFromHtml', () => {
expect(extractRecipeFromHtml(html)).toBeNull();
});
});
describe('hasRecipeMarkup', () => {
it('detects JSON-LD Recipe', () => {
const html = `<html><head>
<script type="application/ld+json">{"@type":"Recipe","name":"x"}</script>
</head></html>`;
expect(hasRecipeMarkup(html)).toBe(true);
});
it('detects schema.org/Recipe microdata', () => {
const html = `<html><body>
<div itemscope itemtype="https://schema.org/Recipe">
<span itemprop="name">Königsberger Klopse</span>
</div>
</body></html>`;
expect(hasRecipeMarkup(html)).toBe(true);
});
it('also detects http:// variant of schema.org/Recipe', () => {
const html = `<div itemscope itemtype="http://schema.org/Recipe"></div>`;
expect(hasRecipeMarkup(html)).toBe(true);
});
it('returns false for pages without any recipe markup', () => {
const html = '<html><body><p>nothing here</p></body></html>';
expect(hasRecipeMarkup(html)).toBe(false);
});
});