isElement flawed or browser hack?

[ronkorving]

I was reading what changed recently and noticed

unique-selector/src/isElement.js

Line 8 in 3c0db08

if ( typeof HTMLElement === 'object' )

Normally typeof HTMLElement is function though, as it's a constructor. Is this a browser hack that's supposed to be there, or a bug?

[tathastu871]

Construtor classess are object