Problem of zendesk-webWidget-vendor-chunk.js in the ie11

Hello, I'm Jayce

Problems arise when trying to open a chat window in an IE11 browser.

I figured out the problem and the web widget script has a method not supported by the ie11 browser.

It startsWith().

(https://static.zdassets.com/web_widget/latest/vendors~web_widget.7836e4b021ec08891164.chunk.js)

I tried polyfill to fix it but it doesn't work.

How can I fix it?