CFG-003medium SeveritySecurity Misconfiguration & Headers
X-Content-Type-Options: nosniff Header Enabled
Modern frameworks require custom header definitions to guarantee MIME sniffing protection on static and dynamic assets.
1-Click Fix Prompt for Cursor & Claude Code
Review my codebase for "X-Content-Type-Options: nosniff Header Enabled" (CFG-003). Issue: Modern frameworks require custom header definitions to guarantee MIME sniffing protection on static and dynamic assets. Remediation required: Add X-Content-Type-Options: nosniff to all HTTP responses. Please: 1. Locate any occurrences of this issue across my repository. 2. Refactor the code to follow production standards without breaking existing functionality. 3. Provide a clear command or step to test and verify the fix.
Why AI Assistants Write This Bug
Modern frameworks require custom header definitions to guarantee MIME sniffing protection on static and dynamic assets.
AI code generation prioritizes immediate syntax execution over production edge cases. When an assistant hits an undefined variable or strict type error, it frequently takes the path of least resistance rather than implementing standard pre-launch security patterns.
Code Comparison
Common AI Code PatternVulnerable
// Vulnerable AI-generated pattern for: X-Content-Type-Options: nosniff Header Enabled
// Problematic pattern: Modern frameworks require custom header definitions to guarantee MIME sniffing protection on static and dynamic assets.Launch-Ready Fix
// Production-ready fix for: X-Content-Type-Options: nosniff Header Enabled
// Recommended remediation: Add X-Content-Type-Options: nosniff to all HTTP responses.Remediation & Verification Checklist
Remediation: Add X-Content-Type-Options: nosniff to all HTTP responses.
- Search your codebase for pattern matching "X-Content-Type-Options: nosniff Header Enabled".
- Apply the recommended remediation: Add X-Content-Type-Options: nosniff to all HTTP responses.
- Run local build and test commands to ensure no regressions.
- Verify in your browser or with curl that the issue is resolved.
Audit All 108 Checks in One Click
Checking items one by one takes hours. Let us do it in 2 minutes.
With the Founder Pass ($15 one-time), we automatically scan your repository for this issue, plus all other 107 launch checks across secrets, Stripe webhooks, Supabase RLS, and security headers.