Hello again
Same topic as here but a i don’t use diagram but suite.
I cannot really imagine that loading icons.css and fonts.woff from the internet is intention, it might just have slipped the developers attention.
Quickly checked the snippet page and it looks like all versions below 8.4.6 do not have dependency to internet, only 8.4.6 and 9.0.0 does.
To get it working without internet, i needed to download:
dhx-icons.css
dhxicons.woff
dhxicons.woff2
First i replace the link to https://cdn.dhtmlx.com/fonts/dxi/dhx-icons.css in the file
suite.min.css
Then i replaced the links to dhxicons.woff and 2 in the localized dhx-icons.css file.