Broken thumbs

[walterzilla]

Brand new NC 12.0.4 installation (basic setup, all settings ok) under Ubuntu server 16.04.03/LAMP

App well compiled, at least seems to me...

npm run build

> @ build /var/www/html/PhotoMap
> node ./node_modules/better-npm-run build

running better-npm-run in /var/www/html/PhotoMap
Executing script: build

to be executed: webpack --verbose --colors --display-error-details --config webpack/prod.config.js
clean-webpack-plugin: /var/www/html/PhotoMap/js is outside of the project root. Skipping...
Hash: 3eb2ae860ae9810c61cb
Version: webpack 1.15.0
Time: 3301ms
      Asset     Size  Chunks             Chunk Names
    main.js   161 kB       0  [emitted]  main
main.js.map  1.72 MB       0  [emitted]  main
    + 177 hidden modules

Files dropped in /nextcloud/apps and app enabled.

Expected behavior: thumbs properly displayed, like in demo snapshot

Actual behavior: thumbs broken

Issue seems browser-indipendent.

What am I missing here?

Thanks!

[walterzilla]

Anybody home...? :-(

BTW same behavior under OC 10.0.4