Thanks for the reply Mike, i totally agree with you! I tested it on superior versions and it worked good.
According to W3C IE and Edge has 8,3% of web users and from that only 0,3% use IE8.
(Link : https://www.w3counter.com/trends)
I explained all to my superiors and they agreed with those observations too.
IE8 should be dead by now hahaha.
Thanks again!
Marc.