PNG export / unwanted rotation of y label

I think there is a bug in the PNG export option of bokeh While the inline plot is showing the name of the axis nicely:

import numpy as np
import holoviews as hv
hv.extension('bokeh')

test_array = np.random.rand(100,100)
hv.Image(test_array).redim.label(y='AXIS')

the png export of the plot does very weird things to the label:

%%output filename="view_plot.png" fig="png"
hv.Image(test_array).redim.label(y='AXIS')

So far I didnt find any plot option to solve this.

[mattpap]

There are known issues with fonts in phantomjs, and the behavior is platform dependent. I can’t reproduce this locally, but I recall seeing this on travis ci. The short term solution is to do a google search for “phantomjs fonts linux” (or “debian” or something similar) and follow one of the tutorials that are supposed to help with this (I don’t know if they actually do; use at your own risk). Alternatively you can modify bokeh(.min).css to use a different font from the default Helvetica, and if this doesn’t work, provide a font on your own (using CSS’ @font-face syntax). In the long term we will switch from phantomjs to chrome headless to resolve this and many more issues we have with phantomjs.

[philippjfr]

Since this is an upstream issue and there is nothing we can do about it at the holoviews level I’m going to close.