Partial rendering results in a blank page?

Neil Middleton wrote:

I'm stuck with a bug at the moment which is puzzling me. I have a layout containing some HTML and a partial (for the navigation) - there is nothing else there other than the yield.

1. If the nav is included as a partial I get nothing returned to the browser at all (blank page) but everything else appears normal 2. If I remove the partial the page works fine 3. If I put the nav code directly in the template it works fine 4. if I replace the nav code in the partial with a simple string, I get a blank page again.

Does anyone have any ideas as to what the problem could be, or know how I might debug it?

Found the issue, the partial was in the layouts folder, instead of the relevant controller views folder.

However, Rails was throwing a ActionView::MissingTemplate Exception which was only visible via the debugger which is probably a bug.