Currency symbol position

[fgarcia78]

I'm located in Mexico, so I'm using '$' as a currency symbol and it should be showed before the amounts. The problem is that TakePOS frontend is showing all the currency symbols after the numeric values:

So, my question is how to configure that? I was checking the code in point_of_sale.assets.js (where currency functions are defined) but I couldn't determine where the pos.currency object is coming from: by inspecting that code in the browser, I could find that currency.position == 'after':

I know that I could hard code the required parameter there, but I would like to do it the right way.

Thanks in advance for your help.