The case of Humanics Institute v. Minister of National Revenue deals with the refusal of CRA to register an organization as a charity in the category of advancement of religion.  The Humanics Institute had lost in the Federal Court of Appeal and now the Supreme Court has denied them leave to appeal.  

Here is the notation in the SCC file:

“2015-04-23 Decision on the application for leave to appeal, Ro Cro Mo, The application for leave to appeal from the judgment of the Federal Court of Appeal, Number A-280-13, 2014 FCA 265, dated November 17, 2014, is dismissed with costs.
Dismissed, with costs”