"You are using Internet Explorer, an unsupported browser :( You should download Google Chrome so you can get started!" Just a warning from a high-school teach

"You are using Internet Explorer, an unsupported browser :( You should download Google Chrome so you can get started!" Just a warning from a high-school teacher: this is a non-starter in a lot of schools. High-school IT departments have a lot on their hands keeping kids on approved sites, and (for historical reasons, as I understand it) IE is one of the easier browsers to deploy in such a way. I know you probably don't want to develop for IE, but if you want to hit the market at large, you'll have to. I can probably get my IT department to put Chrome on for an approved list of students, but not every school will be willing to do that.