Frontend build -> LabelStudio is not defined

I do changes just to use ImageBbox and I can see changes in development, but after run yarn build and using build files in own project console shows error:
LabelStudio is not defined

**To Reproduce**
Steps to reproduce the behavior:
1. create .env
FRONTEND_HMR=true
FRONTEND_HOSTNAME=http://localhost:8010
DJANGO_HOSTNAME=http://localhost:8080
2. cd web
run yarn install --frozen-lockfile
run yarn lsf:watch
run yarn lsf:serve

3. go to 'web/libs/editor/src/env/development.js' and set ImageBbox.
const data = ImageBbox;

4. Go to 'http://localhost:3000/' to se changes.

5. run yarn build

6. copy build files from web/dist/libs/editor to own new project. Start live server.
7. Go to live server http://localhost:5500/editor/
8. And see error:
editor/:280 Uncaught ReferenceError: LabelStudio is not defined

Same error if try to use in React...