The project my company is working on relies on UnityWebGL to run (though it was previously a Windows Standalone application).
Client: We’d like this to run in Internet Explorer 11 or Firefox.
Me: (after some testing) IE won’t load it, but Firefox works great.
Client: Why? You can’t get it to work on IE at all?
Me: It seems UnityWebGL doesn’t work in IE11. From the site, “IE11 is not a supported browser. It is only listed in this compatibility table for completeness.”
Client: Can IE11 run this if it’s hosted on the machine and run through IE?
Me: no, IE can’t support UnityWebGL player at all. IE11 is not a supported browser.
Client: (5 seconds later) Try it anyway for sh*ts and gigs.
Me: It errored, with the message “Please note that your browser is not currently supported for this Unity WebGL content. Try installing Firefox, or press Ok if you wish to continue anyway.“
Client: …and? Did you click ok?
Me: Yes, I clicked it and it errored out. Because IE11 isn’t a supported browser.
Client: Clearly you’re doing something wrong. If it works in Firefox, it will work in IE11.