CloudFront Media Behavior Automation Web PHP v160

v160 makes RunLog use the same card and log markup pattern as TraceLog.

• RunLog is a separate card directly beneath Run.
• RunLog uses card trace-card compact-section, section-title, trace-actions, and trace-viewer standard-field.
• RunLog buttons are Copy to Clipboard and Download.
• No RunLog-only style rules are added.
• Dry run and Apply remain AJAX-only non-submit buttons.
• JSON directory-index behavior is intentionally left untouched.

Built 2026-05-21T02:18:53Z.

v160 emergency safety lock

Default behavior is locked. This build snapshots DefaultCacheBehavior before generating media behavior changes, restores it from the snapshot before upload, and refuses to update CloudFront if the Default behavior changes.

The app may update ordered CacheBehavior media rules only. It must not change Default response headers policy, CloudFront Function associations, or Lambda@Edge associations.

v160: Keeps the v159 Default behavior safety lock and adds live streaming RunLog updates with anti-buffering headers/padding and per-pattern progress events.