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Oversized backend reads do not leak bytes outside the response budget · case 04

Oversized backend reads do not leak bytes outside the response budget.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Backend may return more ASCII bytes than requested. Emit at most remaining bytes and return [emitted,unconsumed], preserving the suffix.

Why this case matters

Range responses combine representation identity, conditional requests, framing, and partial-object state.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixtureActualExpectedOutcome
stream-read-result-cap fixture 0["abcabcabcabc", ""]["abca", "bcabcabc"]Failed

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