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How to Fix Cloudflare Error 521: Web Server Is Down - How to Fix Git SSL Certificate 'Unable to Get Local Issuer'-VS Code IntelliSense Disabled? Here's How to Enable It

Updated 2026-07-28 11:29:26browser-issues

How to Fix Cloudflare Error 521: Web Server Is Down - How to Fix Git SSL Certificate 'Unable to Get Local Issuer'-VS Code IntelliSense Disabled? Here's How to Enable It

Likely symptom

Likely cause

Safe rollback

Verification route

Repeat the original action, not only a simplified test case.
Restart the app or reload the service after configuration changes.