It seems as if the HTML5 stars have aligned pretty well lately. I find myself testing with Chrome, finishing the project, and everything works in Firefox and IE10.
I think you're confusing forever with a really long time.
(1) Asteroid's velocity is eventually overcome by external forces.
(2, 3) Structure decays.
(4) Bodies converge or diverge.
(5) Radioactive decay.
(6) You are observing a high energy system.
(7) Etc.
You would have been better off forcing them to register on your site to submit the resume, then check if they reused a password. Also you exploited trust in a way that could easily lead back to you.