hg push of large changeset fails to Nginx with auth configured

[Kyrra]

I verified I have hg 1.9.1 on both sides.  Nginx is sending 401 back
right at the start of the POST from the client, but the client
continues to send the request regardless of that response.

Where should I put the "ui.usehttp2 = true"?  I tried putting it into
the hgrc under the .hg dir in the project on the client side of
things:

[ui]
ui.usehttp2 = true

and I still got the same results.  I feel like I'm putting it in the
wrong place.

-James