Issue to use webix with https - Excel export doesn't working

Hello,

I have put one application on https and the excel export (from a datatable) will search a library on http.

webix_debug.js:2586 Mixed Content: The page at ‘https://safetest.hq.k.grp/Safetest/custom/sanitycheck2.html’ was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint ‘http://cdn.webix.com/extras/xlsx.core.min.js’. This request has been blocked; the content must be served over HTTPS.(anonymous function) @ webix_debug.js:2586
webix_debug.js:2586 XMLHttpRequest cannot load http://cdn.webix.com/extras/xlsx.core.min.js. Failed to start loading.(anonymous function) @ webix_debug.js:2586

Do you have a quick fix for working with https ?

Regards

I have found the issue.
My developer use library 3.1.1 and with this version we have this issue. That working well with version 3.4.5

Thanks