Problem with Steam Codes

I have problem with adding steam account.
When i try to input shared_secret it tells me that secret is incorrect

**Platform:** Win 10
- Browser: Firefox
- Browser Version: 70.0.1

No source file, test, or entry point is named. Start by reproducing the shared_secret validation failure for a Steam account on the reported Firefox and Windows 10 setup, then trace the validation path and document the expected behavior; done means valid Steam secrets are accepted without breaking other account imports.

索引モデルが issue の本文から書いたものです。