Setting y-axis to invisible does not clear its title

[hylkevds]

Changing the visibility of an y-axis to false with Plotly.update does not clear the axis title from the graph. The axis itself (ticks, numbers, etc.) is removed.

The following jsfiddle (https://jsfiddle.net/tf6urjuq/) shows the issue. It's a modification of the "multiple y-axes example", with only 2 traces. The last two lines hide the second y-axis:

layout.yaxis2.visible = false;
Plotly.update('myDiv', data, layout);

But the text "yaxis2 title" is still visible.

Interestingly, when the axis is re-enabled with a different position, the title is moved to the new position.

[rreusser]

Actually that's a good question: should a hidden axis display the title or not? I'd tend to say yes since hiding the lines and showing the title seems like a valid thing to do. Then to hide the title, you just unset it.

Another reproduction: https://codepen.io/rsreusser/pen/MvpKaX

[hylkevds]

Unsetting or changing the title doesn't work. In my jsFiddle, add layout.yaxis2.title = ""; between the two plot command, and the title still shows.

[rreusser]

Ah yes. Apologies. I meant it's unclear to me that visibility should affect the title at all. Right now it does and right now it's buggy. The part I was thinking through out loud is how best to fix it. It's definitely buggy though. 👍🏼