I assume this actually only happens when you are logged in. And Safari is the only browser in which you experience this because it’s probably the only one in which you’re logged in.
So your visitors don’t actually experience this.
I will fix this in a future release. Sorry for the inconvenience.
By the way, if I follow your link, it takes me to the https version of the website, which results in “Your connection is not private” error. However, if I try to access the same address with http instead of https, I get no errors.