The site's demo is broken because of origin security.
https://soledadpenades.com/articles/three-js-tutorials/rendering-snow-with-shaders/
Error: Mixed Content: The page at 'https://soledadpenades.com/articles/three-js-tutorials/rendering-snow-with-shaders/' was loaded over HTTPS, but requested an insecure resource 'http://soledadpenades.com/files/tutorials/three.js/snow_with_shaders/step10.html'. This request has been blocked; the content must be served over HTTPS.
Clicking the link, the demo is fine when loaded by itself, this might not be the only demo with the issue.
The site's demo is broken because of origin security.
https://soledadpenades.com/articles/three-js-tutorials/rendering-snow-with-shaders/
Error: Mixed Content: The page at 'https://soledadpenades.com/articles/three-js-tutorials/rendering-snow-with-shaders/' was loaded over HTTPS, but requested an insecure resource 'http://soledadpenades.com/files/tutorials/three.js/snow_with_shaders/step10.html'. This request has been blocked; the content must be served over HTTPS.
Clicking the link, the demo is fine when loaded by itself, this might not be the only demo with the issue.