May I ask what type of browser was the phone using, and which version of android was it running? Also the mobile phone type would be helpful. I just tested your site with a random samsung phone (I guess its ace II or something) and with a samsung galaxy tab, and it's working for me. I also tested the demo site, just to double check.
Android is very tricky, it has many many versions with lots of browsers and it varies for each device. To be honest with you, I have absolutely no idea why it wasn't working on that phone. That's the only reason I prefer apple, it makes the developers work less painful.
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