Cancelling an experiment may prevent execution info area to be displayed properly

After cancelling an experiment (via cancel all), we noticed that the display of the execution info on the experiment page may be stuck with the animation.

At the JS level, there is the following error:

Uncaught TypeError: Cannot read property 'appendChild' of undefinedpanels.js:3751 beat.experiments.panels.Results._setuppanels.js:3813 
beat.experiments.panels.Results.update(index):166 
(anonymous function)jquery-1.11.1.min.js:2 m.Callbacks.jjquery-1.11.1.min.js:2 m.Callbacks.k.fireWithjquery-1.11.1.min.js:4 xjquery-1.11.1.min.js:4 m.ajaxTransport.send.b