The maintainers of the chromium-browser package in Ubuntu Linux have disabled hardware graphics acceleration in the latest release (version 43). This means that SimiLive's 3-D Shape Viewer (which also handles lollipop diagrams) is no longer working in this browser/OS combination, because it is based on WebGL. Here's the bug report.
Fixed
Just got my hands on a recent version of Ubuntu (Xenial) and found that this is fixed -- probably has been for some time.