(moved from bug 6152)
If you look at the native client you get:
* Ctrl+Alt+e sends Ctrl+ModeSwitch+é
* Ctrl+Cmd+e sends Ctrl+Alt+e
This is also how Firefox and Chrome behaves, so things are fairly consistent across our clients. However Safari gives us a plain "e" when we are expecting a "é". And Safari doesn't give us any information that this key really is é, so we'll have to wait for them to fix things.