Build Support for OVR Lipsync in WebGL

Hello I was trying to build an web app using OVR Lipsync in Unity, it works perfectly when used in unity but it doesn't seem to work for WebGL build. I get this type of error - "output 2.framework.js:10 DllNotFoundException: Unable to load DLL 'OVRLipSync'. Tried the load the following dynamic libraries:"  Can someone guide me on how to add this functionality to compile this plugin for WebGL.

Thanks.