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Fix JSON parse error for HEAD requests in Bun runtime (#821) #841

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Merged
bluepal-yaswanth-peravali merged 1 commit into from
Jan 22, 2026
Merged

Fix JSON parse error for HEAD requests in Bun runtime (#821) #841

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7 changes: 7 additions & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,13 @@ This driver uses semantic versioning:

### Fixed

- Fixed a JSON Parse error: Unexpected EOF occurring in the Bun runtime when using
`documentExists`, `vertexExists`, or `edgeExists`. The driver now correctly skips
response body parsing for HEAD requests, which must not include a body per RFC 7231.
This fix also applies to all HEAD requests made via Route.head(), ensuring consistent
behavior and compatibility across all fetch implementations.
([#821](https://github.com/arangodb/arangojs/issues/821))

- Fixed `ECONNRESET` errors in NextJS 15 production builds when using `next/cookies`
by explicitly setting the `Content-Length` header for all fixed-size request bodies.
The driver now calculates and sets `Content-Length` for strings (JSON and plain text),
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4 changes: 3 additions & 1 deletion src/connection.ts
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Expand Up @@ -846,7 +846,9 @@ export class Connection {
}
throw new errors.HttpError(res);
}
if (res.body) {
// Per RFC 7231, HEAD responses must not include a body
// Skip body parsing for non-error HEAD responses to ensure cross-runtime compatibility
if (res.body && task.options.method !== "HEAD") {
if (task.options.expectBinary) {
res.parsedBody = await res.blob();
} else if (contentType?.match(MIME_JSON)) {
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