Javascript error 'Object does not support..' with IE7/IE6

The only IE related note I found on the plugin homepage is this:

Browser Compatibility

WP SlimStat uses HTML5 canvases to display its charts. This approach is not compatible with Internet Explorer 8 or older, so you're encouraged to upgrade your browser.

End users and many companies don’t care about what Microsoft supports anymore or not, I observe a 20-30% share of IE6/IE7 on real world WordPress sites which have an international target-group.

Adding a simple try..catch statement around the navigator.plugins code would solve the above described problem.

Here is a quick-fix for interested readers:
1. Replace wp-slimstat.js with dev/wp-slimstat.js
2. Apply the following change, starting at line 66:

_detect_single_plugin : function (plugin_name) {
	var plugin, haystack, found, i, j;

	try {	// added to avoid script error on older IE
		if (navigator.plugins) {
			for (i in navigator.plugins) {
				haystack = '' + navigator.plugins[i].name + navigator.plugins[i].description;
				found = 0;

				for (j in SlimStat._plugins[plugin_name].substrings) {
					if (haystack.indexOf(SlimStat._plugins[plugin_name].substrings[j]) != -1) {
						found++;
					}
				}

				if (found == SlimStat._plugins[plugin_name].substrings.length) {
					return true;
				}
			}
		}
	} catch (e) {}	// added to avoid script error on older IE
	return false;
},

Actually there is already a function _detect_single_plugin_ie() in WP Slimstat javascript (line 88) to detect plugins on old IE, but it is never used because the script fails before, because of above described problem…