Common Browser Errors
When using internal certificates, browsers are very strict. Below are the most common error codes and how to resolve them.
NET::ERR_CERT_AUTHORITY_INVALID
The Logic: The browser simply does not know the "TrustLab Root CA" that signed your website's certificate, so it assumes it's fake.
Solution: You have not installed the Root CA on your device yet.
NET::ERR_CERT_COMMON_NAME_INVALID
The Logic: You are visiting app.local, but the certificate was only issued for api.local. The names do not match.
Solution: The domain is missing from the certificate's SANs (Subject Alternative Names).
- Click the "Not Secure" icon > Certificate.
- Check the DNS Name or SAN field.
- If missing, you must Generate a New Certificate that includes the correct domain.
NET::ERR_CERT_DATE_INVALID
The Logic: The certificate has expired, OR your computer's clock is set to the wrong date (past/future).
Solution:
- Check your system clock first.
- If the clock is correct, the certificate is truly expired.
- Renew the Certificate immediately.