Transiting thru London Heathrow with US Green card expiring in less than a month

[realcool]

I am planning to travel to US from India with my green card. however my green card is expiring in less than a month (I am going back to US to apply for renewal). Is anyone aware of any issues transiting thru London with a Green card that is close to expiry? I know UK has strict policy on transiting with close expiry passport. Wondering if that applies for Green card as well?