FrontendHaltPerformance·Advanced·Conceptual·1 min read
What happens if a lazy-loaded chunk fails to load, such as from a network error?
Short interview answer
The dynamic import's promise rejects, and without explicit handling this can crash the surrounding component tree; production code typically wraps lazy boundaries in an error boundary that offers a retry rather than a blank broken screen.
Key takeaway
Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.