Planning Your CSP Implementation
Before implementing CSP in production, it's crucial to plan your approach. Start by auditing your current application to understand all the resources it loads.
Step 1: Audit Your Application
Use browser developer tools to identify all external resources your application loads. This includes scripts, styles, images, fonts, and other content.
Step 2: Start with Report-Only Mode
Content-Security-Policy-Report-Only: default-src 'self'; script-src 'self' https://trusted-cdn.com;Begin with CSP in report-only mode to identify violations without breaking your application:
Step 3: Monitor and Adjust
Monitor violation reports and gradually adjust your policy to allow necessary resources while maintaining security.
Step 4: Enforce the Policy
Once you're confident in your policy, switch from report-only to enforcement mode.