I just compiled last github master branch and some strange things happen:
- Using latest Google Chrome, all the keys works correctly, except the "Alt Gr": in fact, it's impossible to draw the € sign (which using the IT keyboard would be "Alt Gr" + "E"). All the accented char keys do work (àèìòù).
- Using latest Firefox, none of the accented char keys work (after pressing àèìòù no chars are displayed and Guacamole.Client.sendKeyEvent is not invoked while pressing those keys). Interestingly, in Firefox € (Alt Gr + E) works correctly.
The above deals with an Italian keyboard, but this likely affects other non-US keyboard layouts as well.