Invalid regular expression: /^[native$/: Unterminated character class with HMR

[MikaAK]

Using HMR in one of my apps has started giving me

Uncaught SyntaxError: Invalid regular expression: /^[native$/: Unterminated character class

on debug.js:148.
What seems to be happening is namespaces seems to come in as [native which causes it to error out. Removing --inline and HMR fixes this issue.

[MikaAK]

An update on this, I found out what was causing this to fail. Turns out if I run on port 3000 i get this error, however using any other port works perfectly fine. My full command to run with this error is this:

webpack-dev-server --content-base='build' --port='3000' --colors --inline --hot --progress --history-api-fallback