I have Fluid apps for Trello and for MSO chat. Trello's URL whitelist consists only of *trello.com* and Chat's is similarly limited:

Clicking links to any other URL opens the page in Chrome, my default browser. This works perfectly in all cases except with Google documents. Fluid always tries to open Google docs in another tab in its own window, instead of sending it out to my default browser.

I can't figure out where this behavior is coming from. Has anyone else ever experienced it? What's the fix?