Using the Companion App with Safari on macOS Catalina does not work

Issue Summary

When a user tries to use the Companion App using Safari in macOS Catalina 10.15.2 the installation is not recognized by the browser. This causes Confluence to keep asking for the application to be installed.

Steps to Reproduce

1. Access Confluence with Safari
2. Try to install/use the Companion app

Expected Results

The installation is recognized and file edit works. If already installed, the Companion app is recognized.

Actual Results

Confluence keeps asking for the Companion to be installed

Workaround

Use Firefox or Chrome to interact with the Companion App (Firefox 71.0 and Chrome 79.0.3945.88 have been tested)