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fix(helpers): make X-AIMock-Strict header parsing case-insensitive and whitespace-tolerant #408

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fix(helpers): make X-AIMock-Strict header parsing case-insensitive and whitespace-tolerant #408

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13 changes: 9 additions & 4 deletions src/helpers.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,8 @@ import type {
* Header values override the server default — same precedence pattern as chaos
* config headers (see resolveChaosConfig in chaos.ts).
*
* Header: `X-AIMock-Strict` — "true"/"1" → strict on, "false"/"0" → strict off.
* Header: `X-AIMock-Strict` — "true"/"1" → strict on, "false"/"0" → strict off
* (case-insensitive, surrounding whitespace trimmed).
* When absent or unrecognised, falls back to the server-level default.
*/
export function resolveStrictMode(
Expand All @@ -42,9 +43,13 @@ export function resolveStrictMode(
): boolean {
if (rawHeaders) {
const header = rawHeaders["x-aimock-strict"];
const val = typeof header === "string" ? header : Array.isArray(header) ? header[0] : undefined;
if (val === "true" || val === "1") return true;
if (val === "false" || val === "0") return false;
const rawVal =
typeof header === "string" ? header : Array.isArray(header) ? header[0] : undefined;
if (typeof rawVal === "string") {
const val = rawVal.trim().toLowerCase();
if (val === "true" || val === "1") return true;
if (val === "false" || val === "0") return false;
}
}
return serverDefault ?? false;
}
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