Reaction of hypohalous acids with alkenes
Let us deconstruct our reagent:

Hypochlorous acids, more commonly, 'bleach', is an oxidant.  Additionally, it is not a great acid, pKa 7.40.  

And let us deconstruct our product:  

Additionally the chloride is on the least substituted carbon (anti-Markovnikoff) without any indication of added radical source.  

In this context it is unwise to view this as an analogous to HCl addition.

Your product could be readily explained by an epoxidation-type reaction followed by a nucleophilic substitution with residual chloride ion.  The regioselectivity of Cl on the less substituted carbon would seem to support that, as well as the absence of a O-Cl bond in the product.