.load() method won't get html from a parent directory

.load() method won't get html from a parent directory

I'm trying to use the ajax load() method to load a file from a parent directory, e.g.

$("#divTests").load("../tests.htm");

But that doesn't work.  I can load a simple html file from the same directory as my html file or a descendant directory, but not an ancestor directory.  Nor can I load from an external server.

I'm doing my testing on my PC and I'm not running a server (apache or otherwise).  Just using it as a simple client.  Is that possibly the problem?  Or is there something else I'm missing?  If that is the problem, is there a workaround?

Many thanks ~