memory leaks in composite line chart

[gordonwoodhull]

This question shows an example of memory usage appearing to rise over time and eventually crashing the browser:

http://stackoverflow.com/questions/42885065/dc-js-redraw-with-updated-data-makes-memory-rising

The fiddle is here: https://jsfiddle.net/pbs06zp6/

It appears to be linked to chart.redraw() and in a preliminary investigation, it seemed that the memory leak may have to do with transitions. I'm new to this side of the Chrome developer tools, so I'm not sure if I'm interpreting the results correctly, but turning off transitions did seem to keep memory usage stable in a brief test.

[gordonwoodhull]

If anyone is able to narrow this down further, I'd appreciate any help.

(I'm also looking forward to learning these tools better - powerful stuff!)