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OAuth2 BFF for SPAs — Stop Putting Tokens in localStorage

By Jitin Kayyala · Published April 13, 2026 · 1 min read · Source: Level Up Coding
Security
OAuth2 BFF for SPAs — Stop Putting Tokens in localStorage

Imagine you build a React app and it stores the access token in localStorage. A simple XSS exploit—a malicious script injected through a…

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