**Thank you for contributing to vis.js!**

please **read the following pull request checklist**:

- [ ] Provide a new example (or update an existing example) to demonstrate your change or new feature.
- [ ] Update the documentation if you introduced new behavior or changed an existing behavior.
- [ ] Reference the issue number of issues that your pull request addresses. (If you write something like `fix #1781` in your git commit message github will automatically close this issue when your pull request is merged).
- [ ] Expect review comments and change requests from other visjs-community members.

