Yeah happens also for my charts on random.

Commit d35f0f8 for issue #942 is what broke this.

The problem is caused by a function that creates a temporary SVG element to hold legend text so that the dimensions of this text can be determined. The height of this SVG element was set to zero in commit d35f0f8 to prevent the temporary SVG element from flickering the scrollbar (issue #942). This however had the side effect of setting the heights of all legend text boxes to zero.

Perhaps the solution to both problems is to take the temporary SVG element out of the flow so it doesn't trigger the scrollbar:

svg = body.append("svg").style('visibility', 'hidden').style('position', 'fixed').style('top', 0).style('left', 0)

Maybe you can get away without setting the top-left zero positions:

svg = body.append("svg").style('visibility', 'hidden').style('position', 'absolute')

@mrj Oh well, thank you! :)

Thanks for looking into this. I fixed to use position = fixed and now it seems working.
I'll release this fix in the next version 0.4.10 after RC test. Thanks!

0.4.10 has been released, so let me close at the moment. Thanks.