Hi,
Thank you for the details!
It was due to a known issue of Cloudflare’s Rocket Loader. It changes a core window event flow and the plugin can’t initialize because of it. Fortunately a similar issue was already resolved on github in a different project, I can add a similar fix to the plugin as well.
I made a tiny change to the plugin core script file to fix that, this fix will be also included in the upcoming plugin release, so you don’t have to worry about it.