Comment 3 for bug 1776873

As a result, upgrade Ubuntu to 19.10 broke all our intranet apps/workflow which heavily based on web based portal with a lot of ssh:// links used to quickly open terminal to many thousands managed linux servers and tg:// links to arrange telegram channels related to tasks.

There many hundreds custom URL schemes used by different enterprises around the world, I have no idea how whitelist approach might work at all.