Adding "noprint" class to content has no effect in PDF Exports

Steps to reproduce

1. Create a page.
2. Edit the source of the page and set the following content:

<p class="noprint">I like cheese!</p>

1. Export the page to PDF

What happened

The content printed.

6.7.pdf - page title here is "Alex"

What should have happened (What happens in earlier Confluence versions)

The content should not print.

5.10.pdf - page title here is "hi"