Vaex demo not working on chrome 63

[minzastro]

Interactive demos on https://vaex.io/ are not working: zoom-in works, but data is not updated...
Browser: Google Chrome Version 63.0.3239.132 (Official Build) (64-bit), OpenSuse Linux
Error message:
Mixed Content: The page at 'https://vaex.io/' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://www.astro.rug.nl/~breddels/cgi-bin/proxy.cgi/jansky:9002/datasets/gaia-dr1-lb-10percent/image_rgba_url?limits=%5B%5B31.003323621705984%2C18.258769770183576%5D%2C%5B-4.969398881812663%2C1.4028780439485458%5D%5D&expressions=%5B%22(l%2B180)%25360-180%22%2C%22b%22%5D&variables=%5B%5D&f=%22log1p%22&virtual_columns=%5B%5D&size=%5B512%2C512%5D'. This request has been blocked; the content must be served over HTTPS.

[maartenbreddels]

The for pointing that out, I've changed to https indeed, so that broke it. However, the taxi demo still does not work, will have to look at that.