$ errors.fyi/heroku/H17 128 namespaces · 4,025 codes
heroku · heroku/H17
H17

Poorly Formatted HTTP Response

The dyno returned an HTTP response that the Heroku router could not parse. This usually indicates the application is writing malformed headers or non-HTTP data to the socket.

In this namespace

» community-maintained · contribute on GitHub npm i -g errors-fyi && errorfyi ENOENT