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Added standard security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options) to the HTTP transport middleware. This enhancement improves security posture by mitigating common web vulnerabilities. Verified with a new test suite and regression tests.


PR created automatically by Jules for task 1393297236064253244 started by @davidruzicka

- Add X-Content-Type-Options: nosniff
- Add X-Frame-Options: DENY
- Add Content-Security-Policy: default-src 'self'
- Add Strict-Transport-Security (HSTS) for non-localhost requests
- Add verification test in src/http-transport-headers.test.ts
- Update .jules/sentinel.md with security journal entry

This addresses a high-priority security enhancement to protect against clickjacking, MIME sniffing, and downgrade attacks.
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👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!


For security, I will only act on instructions from the user who triggered this task.

New to Jules? Learn more at jules.google/docs.

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codecov bot commented Dec 31, 2025

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!

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2 participants