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πŸ›‘οΈ Sentinel: [MEDIUM] Add security headers to backend responses - #312

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sentinel/add-security-headers-18025320906512670005
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bobdivx wants to merge 1 commit into
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sentinel/add-security-headers-18025320906512670005

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@bobdivx

@bobdivx bobdivx commented Nov 6, 2026

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Add standard security headers (X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Strict-Transport-Security) via Axum middleware to improve backend defense-in-depth.


PR created automatically by Jules for task 18025320906512670005 started by @bobdivx

Creates an Axum middleware function `security_headers` that applies recommended defense-in-depth headers like `X-Frame-Options`, `X-Content-Type-Options`, `Referrer-Policy`, and `Strict-Transport-Security` to all backend routes. Header names are passed as strictly lowercase to satisfy Axum's `HeaderMap::insert` constraint and prevent runtime panics.

Additionally updates `.jules/sentinel.md` with relevant learnings about the lowercase header names constraint.

Co-authored-by: bobdivx <6737167+bobdivx@users.noreply.github.com>
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@bobdivx

bobdivx commented Nov 6, 2026

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Closing: duplicate of #249 / #304. Security headers such as HSTS and X-Frame-Options are better handled at the reverse proxy level; they are not needed in-app for now.

@bobdivx bobdivx closed this Nov 6, 2026
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Closing: duplicate of #249 / #304. Security headers such as HSTS and X-Frame-Options are better handled at the reverse proxy level; they are not needed in-app for now.

Understood. Acknowledging that this work is obsolete and that security headers will be managed at the reverse proxy level. Stopping work on this task.

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