10000 Fix decode path params in cache interceptor by conico974 · Pull Request #868 · opennextjs/opennextjs-aws · GitHub
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Fix decode path params in cache interceptor #868

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Merged
merged 2 commits into from
May 19, 2025
Merged

Fix decode path params in cache interceptor #868

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2c612b7
decode path params in cache interceptor
May 19, 2025
e89a0d1
review fix
May 19, 2025
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5 changes: 5 additions & 0 deletions .changeset/fast-clouds-shout.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@opennextjs/aws": patch
---

decode path params in cache interceptor
36 changes: 36 additions & 0 deletions packages/open-next/src/core/routing/cacheInterceptor.ts
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Expand Up @@ -130,6 +130,39 @@ async function generateResult(
};
}

/**
*
* https://github.com/vercel/next.js/blob/34039551d2e5f611c0abde31a197d9985918adaf/packages/next/src/shared/lib/router/utils/escape-path-delimiters.ts#L2-L10
*/
function escapePathDelimiters(
segment: string,
escapeEncoded?: boolean,
): string {
return segment.replace(
new RegExp(`([/#?]${escapeEncoded ? "|%(2f|23|3f|5c)" : ""})`, "gi"),
(char: string) => encodeURIComponent(char),
);
}

/**
*
* SSG cache key needs to be decoded, but some characters needs to be properly escaped
* https://github.com/vercel/next.js/blob/34039551d2e5f611c0abde31a197d9985918adaf/packages/next/src/server/lib/router-utils/decode-path-params.ts#L11-L26
*/
function decodePathParams(pathname: string): string {
return pathname
.split("/")
.map((segment) => {
try {
return escapePathDelimiters(decodeURIComponent(segment), true);
} catch (e) {
// If decodeURIComponent fails, we return the original segment
return segment;
}
})
.join("/");
}

export async function cacheInterceptor(
event: InternalEvent,
): Promise<InternalEvent | InternalResult> {
Expand All @@ -147,6 +180,9 @@ export async function cacheInterceptor(
// We also need to remove trailing slash
localizedPath = localizedPath.replace(/\/$/, "");

// Then we decode the path params
localizedPath = decodePathParams(localizedPath);

debug("Checking cache for", localizedPath, PrerenderManifest);

const isISR =
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