If iframe with graph has display:none, FF gives "Main div contains padding; graph will misbehave"

[BosJ]

E.g.

<section id="section" style="display: none;">
    <iframe src="graph.html" width="600" height="400"> </iframe>
</section>

gives in Firefox Webconsole: Main div contains padding; graph will misbehave, but not in Chrome.

Page which demonstrates the problem: http://bosj.github.io/ (using dygraphs 2.2.1)

Maybe something to do with https://bugzilla.mozilla.org/show_bug.cgi?id=548397

[mirabilos]

Jaco Bos dixit:

Maybe something to do with https://bugzilla.mozilla.org/show_bug.cgi?id=548397

Probably.

gives in Firefox Webconsole: `Main div contains padding; graph will misbehave`, but not in Chrome.

The various codes to determine sizes of things that are necessary for positioning etc. don’t deal well with invisible graphs. Not much we can do about that, I think. Maybe that message should be delayed? if the graph is invisible but I’m not sure we can even figure out whether it is. I’m open for suggestions.