I have encountered a strange issue while deploying webix based application in production. Namely browsers (Firefox, Chrome) stop to download my application after they have downloaded webix_debug.min.js when application is accessed for the first time. Once I refresh the page, i.e. press F5 everything works as expected.
Indeed it seems to be working now. Sometimes I have to wait up to 5s, but in the end application shows up.
BTW I have noticed that downloading webix from CDN, i.e. //cdn.webix.com/site/webix.js?v=4.1.0 it works much faster, aka ~0.5 s (10x times). But I get a notification that it is not intended to be used outside webixc.com. Do you provide any public CDN?