Bug Report 🐛

The lawtalk website breaks when the testing playground extension is turned on.

• Testing Playground on
  image

• Testing Playground off
  image

To Reproduce ✔️

1. enable Testing Playground extension
2. enter https://www.lawtalk.co.kr
3. you can see - Uncaught TypeError: Expected an element or document but got string

Expected behavior 🤔

Website doesn't break.

Suggested solution 🔦

I'm not sure why it's breaking, but we've had similar issues in the past.

Your Environment 💻

• browser: Chrome
• os: Mac