Impossible to add google account with GOA

[Pascal Legrand <pascal legrand univ-orleans fr>]

Hello
i've got a problem when i try to add a google acount in "gnome online 
account"
I've got a blank popup windows with a blue line at the top and i cant do 
anything inside this windows.
I'm using Debian SID with gnome (X11 not Wayland)
I've got 2 computers with the same configuration one works well and the 
other doesnt works.
Here the screenshot of the blank popup windows : 
http://plegrand1.free.fr/goa.png
Here the log of the good and faulty coputers : 
http://plegrand1.free.fr/goa-log.txt
Could you help me to investigate and find what is the problem ?

Thanks for your help
Pascal