Yep, which is exactly why I haven't replaced mine after it got busted. Instead I "rebuilt" it with clear Gorilla Tape and a Prop 65 sign (because everything in California causes cancer, apparently).
Naturally, it's the one window that even my Haynes Book says "don't try replacing it yourself; hire a professional". Thanks, guy-who-desperately-wanted-my-jumper-cables-and-jump-box-out-of-the-back-of-my-car. Real considerate of you.