Creepers aren't supposed when there is a closed door between player and creepers but only when the door is opened.
Update: they will even explode with a wall of bricks, I was in a corner of a house and then the creeper started to explode.
All of this can be seen in a video I recorded
MCPE-17422
Creepers explode with closed door
Resolved
Duplicate
0
(Unassigned)
Unconfirmed
Tablet - Android - Samsung Galaxy Tab S
0.15.90.7, 0.15.90.8
Retrieved
Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-17220.
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