Web build doesn't build materials / show anything

[JayFoxRox]

When I open any material in the web version at http://skaven.fr/imogen/ it lacks any preview, and manually hitting "Build current material" gets stuck at 0%.

I'm using Firefox 72.0.1 (64-bit).

There are some warnings and errors in my browsers debugger console, but I'm not sure which one would be relevant to this. I'm not sure if this issue only affects me or also other users / browsers. I can probably provide more details from those logs if requested. For now I'll assume that this issue is easy to reproduce (I believe #76 also mentions this problem?).

[CedricGuillemet]

Hi!
That was using Imogen 0.13. It was more of a PoC than anything stable enough.
Imogen 0.14 (WIP) will be much more tested.