Quick and dirty test for IR emissions from a green laser?

I've read the NIST paper but it occurred to me to try a different test. I'd like to hear feedback on the validity of this.

My cellphone front camera is very sensitive to IR. A remote control looks like a flashlight. So, I took my green laser and put it against HDE red 405-532nm glasses (which should block all the visible green light). Looking at the glasses (obliquely of course) I can see a dim red dot. The camera pretty much sees the same thing. This leads be to believe that my green laser has an IR filter.

Comments and critiques?

Thanks!