Why is a CORS browser extension tempting?
Because it works instantly with one click and unblocks everything immediately. The danger is getting used to it and never switching to a proper fix, which leaves you thinking your app works when it does not for real users.
Verify This Answer
Cross-check this information using these trusted sources:
More FAQs in CORS Browser Extension vs Proxy: Which Should You Use While Developing React?
Use a proxy for real development. A CORS extension is fine for a quick one-off test, but it is not a real fix, does not mirror production, and must never be used in production or asked of users.
Because it routes the request through a server-side origin, works reliably across your team, mirrors how production works, and does not rely on disabling a security feature. It teaches you the real fix.
Only for one-off testing when you want to see a response quickly. Remove or disable it afterward so you do not fool yourself into thinking your app works when it does not without the extension.
Still have questions?
Browse all our FAQs or reach out to our support team