Debug wrong DOM attributes in unknown framework

Q: Debug wrong DOM attributes in unknown framework

This is a Other / Miscellaneous interview question from Stripe for Software Engineer roles. View the full question and solution on PracHub.

Q: How do I approach Other / Miscellaneous interview questions?

Other / Miscellaneous questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master other / miscellaneous interviews.

Question

Frontend Debugging Plan: Incorrect DOM Attributes in an Unfamiliar Framework

Context

You join a team using an unfamiliar frontend framework. In the browser DevTools, rendered DOM elements show incorrect attributes (e.g., className rendered instead of class, mis-cased data-*/aria-* attributes, or boolean props serialized as strings). You need to quickly isolate the root cause, implement a fix, and prevent regressions.

Task

Outline a step-by-step debugging plan that covers:

Creating a minimal reproduction.
Inspecting template-to-DOM compilation or JSX/TSX transforms.
Checking SSR vs client hydration mismatches.
Verifying component prop passthrough and attribute reflection (especially for custom elements).
Auditing build tooling and plugins.
Confirming reserved or framework-specific props behavior.
Isolating the root cause, implementing a fix, and adding safeguards (lint rules, type checks, tests) to prevent regressions.

Debug wrong DOM attributes in unknown framework

Frontend Debugging Plan: Incorrect DOM Attributes in an Unfamiliar Framework

Context

Task

Solution (Locked)

Comments (0)