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I once did a security review for a site that claimed to only support Chrome. I tried Firefox and used a UA switcher to fake being Chrome, and sure enough, the

I once did a security review for a site that claimed to only support Chrome. I tried Firefox and used a UA switcher to fake being Chrome, and sure enough, the site didn't work. The page would load, but nothing would interact. Turns out, their JS minifier was creating code that contained a syntax error. Chrome was able to make it work, but Firefox would silently error out. Rather than try to solve the problem, they blocked any browser that wasn't Chrome. -_-

acdha 5y ago
When IE8 was released: Me, to <litigious tech company>: “Your JavaScript fails on IE8 because it now throws an exception when it attempts to set an invalid CSS value. I made a tiny patch but do you have an ETA for the fix?” LTC support: “We don't beta test Microsoft's products for them!” Me: “Okay, it was released this week. How's testing going?” [a week passes] LTC support manager: “Hey, can we get a copy of that patch to give to other customers?” My employer at the time paid 7 figures annually for support.