If you create a web app, and it needs a specalized piece of code for one specific browser to work – such as an ActiveX Script – then you didn’t make a solution but took the easy way out as a developer and company. And if an enterprise is wild enough to entertan the idea of using your product without asking on that basic note, then that enterprise also needs to be questioned for sanity.
In this day and age, apps that are limited like this are not solutions but locks and should be avoided.
Oh yea, if you aren’t addressing mobile browsers with certain enterprise web apps then you’ve also missed the boat. Where’s the innovation now? Ding!