Whenever I go to a page on the Via Michelin site <
http://www.viamichelin.co.uk> that displays one of their maps -- such as, say, the 'Maps' section, or a hotel search -- it causes OmniWeb to use large amounts of CPU and 'hang', until I force-quit it. This seems to be completely repeatable.
The same thing doesn't happen in Safari, where the maps load and display without any problems.