The JSON Formatter Chrome Extension doesn't work in Orion

Steps to reproduce:

1. Download the JSON Formatter Chrome Extension.
2. Navigate to any URL that returns a JSON response (like https://www.reddit.com/r/all.json).

Expected behavior:
JSON responses should now be formatted (as in the screenshot below) but nothing happens. Orion still renders JSON responses as plain text.

Orion and macOS:
Orion: 0.99.107-beta (WebKit 613.1.3)