Shaka Player does not trigger "error listener"

Question

I am using ShakaPlayer in my WebOS Project.

I implemented same thing in the documentation,like the one below.

player.addEventListener('error', function(event){
    console.log("errror",event)
});

but i did not get any console.log for the error instead i always get error in uncaught(in promise).

output error image

shaka-player.ui.js:24 Uncaught (in promise) ve {severity: 2, category: 6, code: 6001, data: Array(0), handled: false}

i tried the same thing in documentation and i expected that i can console.log the error and keep it for my usage.

Somehow the result is still the same , there is no error listener trigger and still the error is in uncaught error.