Spaces rendered in html with Ionic 1 and Sublime Text 3

I’m finding something pretty odd.

I’m used to searching through code for minor errors and I’ve started using this tag checker for my ionic ocde

I keep getting extra spaces added between cards or empty list items in the app and I’ve found out that it’s spaces after tags in the actual html! If I remove them the app renders normally.

This is most unusual. Has anyone else found this?