safari 13 regExp error with flags u

there is an error on safari 13 : SyntaxError: Invalid regular expression: invalid escaped character for unicode pattern
And it will not happend on safari14.

I found it caused by
node_modules/monaco-editor/dev/vs/editor/editor.main.js line 104281

.replace(/([^\b_])(\p{Lu})(\p{Ll})/gmu, '$1_$2$3')

It look like a safari’s error, but I have no documents to prove it. Can somebody tell me how to resolve it? Or give me some safari’s documents?(I found nothing useful on Apple’s website)
Thx very much.

**monaco-editor version: 0.22.0 or 0.22.3 Browser: safari13 **OS:**10.15.7 Playground code that reproduces the issue:

[alexdima]

I’ve pushed another change to protect against this. The outcome of this last change is that SnakeCaseAction will simply not be available in Safari 13, but I could not test it since I have Safari 14.

[SamVerschueren]

This will highly likely not fix it entirely. The Monaco editor has two regexes which need replacement and only then it works.