Error while loading HTML5 liveupdate content (SOLVED-ish)

Questions
#1

I’m porting an HTML5 Facebook Instant game to work outside Facebook on a normal hosted web page. Everything works, BUT I’m having trouble loading the live update content.

This is the error I get:

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Screenshot 2019-08-06 at 14.19.49.png874×191 46.8 KB

Since it works on Facebook, what additional steps might I need to go through on web?

Live update settings (minimal!):

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Screenshot 2019-08-06 at 15.32.03.png676×837 25.9 KB

Edit: I tried it on a different domain/website and it works! No idea why. Same files.

#2

Might have been a cache issue somewhere? Do you use an automatic CDN?

#3

Very possibly, my hosting is as cheap as can be (one.com). Pleased that it works on a much more robust server system (aws).