Identify and fix CORS issues in seconds. Gain full visibility into preflight requests and response headers that block your app.
CORS errors are notoriously opaque, often showing up as generic 'Network Error' in the console without explaining which header is missing.
DevConsole highlights failed preflight (OPTIONS) requests and explicitly shows the mismatch between requested and allowed headers.
Requests blocked by CORS are highlighted in red in the DevConsole Network Log.
Check the 'Preflight' tab to see exactly what the server returned vs what the browser expected.
Use the request replayer to try different headers and see what would satisfy your server's CORS policy.
This is often due to the browser's strict CORS enforcement. DevConsole helps you see the raw headers to find the discrepancy.
No, it's a debugger for your app's actual network traffic. It helps you see the 'why' so you can fix the 'what' on your server.
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