Fix more JavelinView example stuff

Summary: Fixes T3544. Depends on D6475. This was just a missing dependency combined with some questionable error handling which I'll maybe fix some day.

Test Plan: Loaded page, saw result.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T3544

Differential Revision: https://secure.phabricator.com/D6476