Click the "web" button under it, then select the result from the Google search
For NY Times, the fact that I have non-persistent cookies as a Firefox extension helps greatly. For other sites (WSJ especially) I've got to jump through several more hoops.
Given that the goal on HN is discussion of the article, and that the workarounds aren't evident or foolproof, this is a consistent pain point.
And simply using the "web" button does not consistently work. You should be aware of this.