On 1st use of LaTeX Math with Safari, inserting a new LaTeX macro returns a metadata error

Summary

After installign LaTeX Math add-on on a Confluence instance, if you attempt to insert one of LaTeX macros on a page using Safari for the first time will return an error message on the appearing pop-up:

There is no metadata configured for this macro which means no configuration screen can be presented here.

Steps to Reproduce

1. Install LaTeX Math on your Cloud instance.
2. Using Safari, attempts to insert a macros from the LaTeX Math add-on.

Expected Results

A pop-up opens and displays the macro settings properly.

Actual Results

A pop-up opens and displays the following error message:

There is no metadata configured for this macro which means no configuration screen can be presented here.

Notes

This is only reproducible on the 1st use of LaTeX Math with Safari. If it was already used before then it will not be reproducible.

Workaround

Use a different browser and try to insert a LaTeX Math macro on it. The pop-up will display properly allowing you to use it on Safari as well.