- Heroku Architecture
- Language Support
Databases & Data Management
- Heroku Postgres
- Heroku Connect (Salesforce sync)
- Extending Heroku
New Error Code H32 - TLS Certificate Mismatch
Change effective on 16 November 2023
We added a new error code: H32 - TLS Certificate Mismatch. This error occurs when the request
Host header doesn’t match the hostname sent by the client via Server Name Indication (SNI). This issue can happen if you take requests at one domain and proxy them to another domain using Heroku SSL, without rewriting the
Host header to match the second domain.
See the error code documentation for details.