Issues creating webapps snaps with stric confinement

[Vincent JOBARD]

Hi Everyone

I just try to follow the tutorial to learn how to create webapps snaps
using snapcraft. (
https://developer.ubuntu.com/en/phone/web/ubuntu-webapps-guide/, very nice
tutorial by the way)

Unfortunately, when I try to create my snap with strict confinement, I have
a network Error page, but all works fine in devmode.

I'm at work behind a proxy with cntlm authentification. could it be related
?

Thx for your answers guys

Cheers
Winael