https://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclustererplus/src/markerclusterer.js

/** * The default root name for the marker cluster images. * * @type {string} * @constant */ MarkerClusterer.IMAGE_PATH = "http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclustererplus/images/m";

What steps will reproduce the problem? 1. load https://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/examples/simple_example.html 2. The page at 'https://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/examples/simple_example.html' was loaded over HTTPS, but displayed insecure content from 'http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/images/m1.png': this content should also be loaded over HTTPS. 3.

Expected result:

Actual result:

Version: ###

Browser / Operating System: [Chrome / Win7]

Additional comments: [Enter any additional comments about the bug here.]

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This a (better described) duplicate of: https://code.google.com/p/google-maps-utility-library-v3/issues/detail?id=225

The problem can be solved by overriding the imagePath option using it's httpS version like :

mcOptions = { imagePath: "https://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclustererplus/images/m" };

markerCluster = new MarkerClusterer(map, MarksToDisplay, mcOptions);

Cdlt, Bertrand.