WebGL doesn't working

Hi guys I have a serius problem and a deadline on the way!
When I am going to export my project on webGL its take some time to build the scenes but after nothing saves on my destination folder and nowhere in my PC.
With difference console windows or mac for example its build without any problem!
Any soloutions?

Thanks for your time!

Does throw error like 404 or just stops?
What does console says ?