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fix(favicon): raise max icon size to 256 KB for hi-res PNGs

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DuckDuckGo serves hi-res PNG favicons that legitimately exceed the old
100 KB cap, causing them to be rejected and negatively cached.

Co-Authored-By: Claude Opus 4.7 <[email protected]>
This commit is contained in:
Julien HerrandClaude Opus 4.7 committed 2026-05-25 23:30:20 +02:00
1 parent fd3ff8c40a
commit a353de1342
2 files changed
+13 -2
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src/config/constants.ts
+7 -2
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@@ -38,8 +38,13 @@ export const ICON_TTL_SECONDS = 7 * 24 * 60 * 60; // 1 week
*/
export const ICON_NEGATIVE_TTL_SECONDS = 6 * 60 * 60; // 6 hours
/** Maximum accepted favicon size (bytes); larger responses are rejected. */
export const MAX_ICON_BYTES = 100 * 1024; // 100 KB
/**
* Maximum accepted favicon size (bytes); larger responses are rejected.
* DuckDuckGo serves hi-res (often 144×144) PNG favicons that legitimately
* exceed 100 KB, so the cap is generous; KV's value limit (25 MB) is the only
* hard constraint, even after base64 inflation.
*/
export const MAX_ICON_BYTES = 256 * 1024; // 256 KB
/** Timeout for an outbound favicon fetch (milliseconds). */
export const ICON_FETCH_TIMEOUT_MS = 5000;