Unity integration works, Web GL build doesn't

I started recently working with FMOD with Unity. Using whole fmod project, and integration seems to work fine both in Unity edit mode and pc, mac & standalone build, but I’m having a hard time trying to build a webgl version.

Building as developer version, it spams the error message:
SystemNotInitializedException: [FMOD] Initialization failed :
FMOD.Debug.Initialize: ERR_UNSUPPORTED : A command issue was not supported by this object. Possibly a plugin without certain callbacks specified

Bulding as developer version and selecting libfmodstudiounitypluginL plugin, as documentation says it’s more verbose, got the error message:

EventNotFoundException: [FMOD] Event not found ‘event:/<my_sound_name_here>’

Using FMOD integration 2.00.03, Unity version 2019.2.0f1

Any clues?

This is due to FMOD trying to initialize debug functionality with the release lib, I have added a new chapter to the docs for this: