xdg-open with non-existent default application and memory usage

[Ted To]

Hi,

I recently had the experience where xdg-open was consuming all of my
computer's ram.  The source of the problem was that a non-callable app
was somehow defined as the default web browser.  (After tracing the root
of the problem, I have changed the default.)  Using ps_mem.py, I found
that xdg-open was consuming more than 4G of ram.  I would suggest that
if xdg-open has problems launching the default application, it should
eventually give up.

The version of xdg-utils installed on my computer is 1.1.0.git20140207-1
from the Manjaro repositories.

Thanks,
Ted To