I am sorry but i have to post this, it is way too hilarious
WoW Forums -> Alliance Guild Resilience....LAME CHEATERS
and
WoW Forums -> @Resilience
The way to do this is only for mages, you have to keep on running on the inside part of the dome, and while runing, blink, and keep on running, you should go through the dome and barrier to tele back into dome, if this was a repost, my bad, just wanted to include this into the post so it was still kinda of worth looking at
PS: I am "Jamila" in the whole thing