google maps marker clusterer not working in IE7 & IE8 due to an 'is null or not an object' error <p><a href="http://expertforum.ro/extra/harta-bugetelor/primarii.html" rel="nofollow">I have a google Map</a> (js api v3) + marker clusterer which doesn't display in Internet Explorer 7 &amp; 8 - I get the classical js error:</p> <blockquote> <p>Message: 'addresses[...].lt' is null or not an object</p> </blockquote> <p>On the other hand, <a href="http://expertforum.ro/extra/harta-bugetelor/judete.html" rel="nofollow">this other example</a> which uses a very similar json file, but doesn't use marker clusterer - displays the same error, but renders the markers on the map.</p> <p>So I'm not even sure it's .json syntax error, rather something that bothers the marker clusterer instance, but I have no idea what</p>