canonical
print.css should not be a separate network request
Summary
Currently, the relatively small print css file is a separate network request. this should be bundled with the main style sheet via a print media query.
Solving this with IE8 support is difficult
You can include a separately-rendered print.css with IE conditional comments - no ideal but tried-and-tested.
But! When you include the print styles in the main stylesheet in a @media print they are applied in addition to the screen styles. Sure, you could wrap the screen code in @media screen but that makes it invisible to IE8, defying the point of a lot of the work.
Polyfills for IE8 to understand media queries are an option but I don't know how they would work with print styling.
I can't think of a good solution.
The conditional comments approach makes sense to avoid the extra HTTP request which is unnecessary for most browsers, but this would lead to having the print styles in two places - although I guess we can just import the same stylesheet into our main one with SASS.
According to the webteam practices we don't provide support for IE8, so we can merge the print.css file with the rest of our css
