Invalid "+" symbol generated in getCSSModuleLocalIdent

[yangjocy]

Dup of #11775.

Describe the bug

The output of getCSSModuleLocalIdent() in react-dev-utils might include invalid + symbol, like 'SidePanel_slideIn__xwW+q'. That would invalidate corresponding CSS classes and cause style error.

Did you try recovering your dependencies?

Yes.

Environment

react-dev-utils: v12.0.0, the lastest

Steps to reproduce

It is difficult to reproduce because the class-names are auto-generated.

Expected behavior

+ as in class names is removed.

Actual behavior

The symbol is there. screenshot

I'd be happy to submit a PR if this makes sense and I didn't miss something obvious. Thank you!

[mikeaustin]

This was originally reported for css-loader, since I thought it was using the default localName generator.

webpack-contrib/css-loader#1414

[pstrh]

@yangjocy I think this is a duplicate of #11775. I submitted a PR #12013 to fix it.

[yangjocy]

@pstrh Thanks for reminding, I'll link them and close this issue.