It could pass a law requiring the Prime Minister to revoke the Article 50 notification on March 28 if the Withdrawal Agreement hasn't been ratified
1/
spinninghugo.wordpress.com/2019/01/18/cha…
2/
But it is perfectly feasible, as a matter of law.
It follows from the @andywightman @JolyonMaugham case on revoking Article 50 unilaterally.
The UK could certainly safely revoke if Parliament legislated for it
3/
4/
Politically unpopular, maybe; legally possible, definitely.
5/ends