Moving <main class="mdl-layout__content"> yields issue with scrolling when drawer open

[hallelulius]

The <main class="mdl-layout__content"> was moved from default.html into page.html and post.html in a update. This breaks the prevention of scrolling when the drawer is open (see screenshot). Solution would be to move <main class="mdl-layout__content"> back to default.html. Why was it moved in the first place?

[DecWebb]

This is still an issue.