safari can not run html export on itch.io

:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By fliar
:warning: Old Version Published before Godot 3 was released.

I have created a test project on itch.io:
godotsafari by fliar

tested on chrome and found no problem
but safari shows failure during start up, checked the console, found assert fail:

[Error] Assertion failed: undefined

is there a way to fix it?