Twelve explained decisions about frame permissions, messages, ports, handoffs, dependency graphs, asset integrity, and rollout. Choose one answer, inspect its explanation, and return to the related boundary.
Related lessons
Frame Sandbox, Capabilities, and Fallback; Cross-Window Messages: Origin, Source, Schema, and Replay; MessageChannel Lifetime and Request Correlation; Popup Handoff, Return, and Window Ownership; Locked Dependency Resolution and Clean Installs; Dependency Admission, Install Scripts, and Provenance; External Asset Integrity and Module Resolution; Artifact Manifest, Rollout, and Rollback Coherence.