Steemit editor: Error using HTML snippets

Expected behavior

On Steemit editor, if I write a post that says:

or any post with in it, it should get posted without trouble.

Actual behavior

But An image in this post did not save properly. error shows when I try to submit the post.

How to reproduce

Insert anywhere in the post this:

• Browser: Google Chrome 63.0.3239.132
• Operating system: Ubuntu 16.04.3 LTS

Recording Of The Bug