- - > ON WIX_PREMUIM_SITES_ONLY ← -
Do you have a Wix-Premium-Site?
If so - - > test it on a PREMIUM-SITE and then do the same on a FREE-site, you will recognize the difference.
MAYBE YOU WANT TO READ THIS ONE, WHICH WILL EMMIDIATELY LET YOU UNDERSTAND THE ISSUE…
And do not forget to like it, if you really liked it! 
That was my favourite…
…Wix since they limit your freedom as a developer when it comes to working with technologies that were not made by them…
This hurts, but partialy it’s true. 