About erasing the space between two HTML tags

[Ademgenc53]

Hello,

Deletes and merges spaces between all HTML tags made in editor

</div>

<div>

Output
</div><div>

However, HTML code pasted from outside does not delete the spaces between tags.

This causes failure to restore from database to editor

What should be done to erase the spaces between tags of HTML code pasted from outside?
OR
What should be done to prevent errors in case of gaps between HTML codes?

Thank you