fix(server): prevent reference issues in ResponseHeadersPlugin#693
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Summary of Changes
Hello @unnoq, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request resolves a potential issue within the ResponseHeadersPlugin where direct manipulation of response headers could lead to unintended side effects due to shared object references. The changes ensure that header modifications are performed on a distinct, cloned copy of the headers, promoting immutability and preventing unexpected behavior in subsequent processing steps by returning a new result object.
Highlights
- Reference Safety: Implemented cloning of response headers within the
ResponseHeadersPluginto prevent unintended mutations of the originalresult.response.headersobject, addressing potential side effects. - Immutability: Ensured that the
ResponseHeadersPluginoperates on a new, cloned set of headers and returns a newresultobject, enhancing the immutability of the response data. - Dependency: Introduced an import for the
cloneutility from@orpc/sharedto facilitate the deep copying of header objects.
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WalkthroughThis change updates the handling of response headers by deep cloning the headers object before modification, ensuring the original headers remain unchanged. The merged headers are then returned within a new response object, preserving immutability and explicitly updating the response structure. Changes
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🧰 Additional context used🧬 Code Graph Analysis (1)packages/server/src/plugins/response-headers.ts (1)
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Code Review
This pull request fixes a reference issue in the ResponseHeadersPlugin by cloning the response headers before modification, preventing mutation of the original headers object. A potential issue was identified where the code could throw a TypeError if the response does not initially contain a headers object, and a suggestion has been provided to address this.
Codecov ReportAll modified and coverable lines are covered by tests ✅ 📢 Thoughts on this report? Let us know! |
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