What facing in a corner

Today had a strange situation 1st time after playing from E1.

A unit was in my flank but due to another one of my units the only place he could make contact on the charge was the exact corner.

We made a decision in game but the question was asked is a corner both the front and flank for contact.

thank you

Yes, a corner counts as both facings when making contact.

You would have to align/pick up and place the unit into the facing you are charging.

Note that corner to corner contact isn’t permissible