Area boundary/Portal jumping project

This is a personal project to find and document which portals can be shadow step without triggering the normal rezone through use of the skills Heart of Shadow and Viper's Defense.

Test Procedure

 * 1) When flagged too close a portal, a hero will teleport back to the player character and the flag will automatically be cleared.  Flag the hero as close as possible to the portal without this happening.  (Thanks for pointing this out, Vipermagi.)
 * 2) Assuming your character is the one using the skill Heart of Shadow or Viper's Defense, stand where the hero is flagged and face straight away from the portal.
 * 3) Use your reverse view key (probably 'z') to check for any obstructions directly in your path.  If there are any, start over and choose a better position.
 * 4) Activate the relevant skill and see if you zone or if you simply appear on the other side of the portal.  If you appear on the other side of the portal, see what you can explore and document it.
 * Alternatively, a hero can use either of these skills as well. Position that hero as close as possible to the portal, move so he or she is directly between you and the portal, and order the hero to activate the relevant skill.  If it works, you will need a skill that allows you to shadow step to his or her location to see what is explorable.

Cantha
(May as well add the couple I already know about here.)