Why are my changes in index.html not visible after deployment?

Hi I see that the index.html is the standard html version without my changes in the index.html file. Probably it has to do -again- with the fact that I am using Mx theme and Sass. How can I still change index.html? Edit 1: i tried to change the index.html file in the theme zip of the theme and rezip it again, with no results. I make use of the Silver lining theme.
1 answers

Did you clear browser cache when you run your application (ctrl+F5)?