maybe only @media print is correctly supported by IE9+ (https://joshuawinn.com/css-print-media-query/)
What we can do is :
1) rollback, but still merge print media
2) destroy media all (that was the point here)
3) destroy media equivalent to all... currently it looks like it is: print, speech and screen (https://www.w3schools.com/css/css3_mediaqueries.asp)
4) remove any "old" media such as handhelp
5) have a tour on our skins to remove useless media
maybe only @media print is correctly supported by IE9+ (https://joshuawinn.com/css-print-media-query/)
What we can do is :
1) rollback, but still merge print media
2) destroy media all (that was the point here)
3) destroy media equivalent to all... currently it looks like it is: print, speech and screen (https://www.w3schools.com/css/css3_mediaqueries.asp)
4) remove any "old" media such as handhelp
5) have a tour on our skins to remove useless media