The microphone is not working on the WebOS (WebApp)

Video SDK Type and Version : 1.12.1

We are testing ZOOM’s “Videoosdk web sample master” sample web by applying it to the web server.

First, I accessed it from the Windows Chrome browser, and the rest through WebApp on WebOS.

The video comes out normally, but the microphone and speaker do not work properly in WebOS.

However, the microphone and speaker function normally in the Preview menu.

Please give me some advice on this issue.