Error unexpected token: punc (.) on optional chaining

[kimlimjustin]

Describe the bug
Error "unexpected token: punc (.)" when minifying JavaScript file which contains optional chaining (?.) syntax

To Reproduce
Steps to reproduce the behavior:

1. Create a JavaScript file
2. Add an optional chaining syntax, ex: if(object.key?.otherKey)
3. Run Minify
4. There will be an error showing unexpected token: punc (.)

Expected behavior
The JavaScript file is minified correctly

Desktop (please complete the following information):

• OS: Windows 10 Home Single Language
• Version: 1909

[gabrielmachts]

I have the exact same issue.

OS: Xubuntu Linux
Version: 20.04

[rmm443]

same

[Erik-Schlegel]

same

[Slashdacoda]

same