Running plotly headlessly gives runtime error

[Immortalin]

When running the following code headlessly i.e. outside IPython, via the python interpreter

import plotly.tools as tls
import plotly.offline.offline as offline
tls.mpl_to_plotly(plt.gcf())

gives the following error:

File "../zipline/examples/dual_moving_average.py", line 116, in analyze
    offline.plot(tls.mpl_to_plotly(plt.gcf()))
  File "/home/immortalin/.local/lib/python3.4/site-packages/plotly/tools.py", line 478, in mpl_to_plotly
    matplotlylib.Exporter(renderer).run(fig)
  File "/home/immortalin/.local/lib/python3.4/site-packages/plotly/matplotlylib/mplexporter/exporter.py", line 49, in run
    self.crawl_fig(fig)
  File "/home/immortalin/.local/lib/python3.4/site-packages/plotly/matplotlylib/mplexporter/exporter.py", line 116, in crawl_fig
    self.crawl_ax(ax)
  File "/home/immortalin/.local/lib/python3.4/site-packages/plotly/matplotlylib/mplexporter/exporter.py", line 147, in crawl_ax
    self.crawl_legend(ax, legend)
  File "/home/immortalin/.local/lib/python3.4/site-packages/plotly/matplotlylib/mplexporter/exporter.py", line 167, in crawl_legend
    self.draw_text(ax, child, force_trans=ax.transAxes)
  File "/home/immortalin/.local/lib/python3.4/site-packages/plotly/matplotlylib/mplexporter/exporter.py", line 211, in draw_text
    style=style, mplobj=text)
  File "/home/immortalin/.local/lib/python3.4/site-packages/plotly/matplotlylib/renderer.py", line 514, in draw_text
    if not mpltools.check_corners(props['mplobj'], self.mpl_fig):
  File "/home/immortalin/.local/lib/python3.4/site-packages/plotly/matplotlylib/mpltools.py", line 42, in check_corners
    inner_corners = inner_obj.get_window_extent().corners()
  File "/home/immortalin/.local/lib/python3.4/site-packages/matplotlib/text.py", line 959, in get_window_extent
    raise RuntimeError('Cannot get window extent w/o renderer')
RuntimeError: Cannot get window extent w/o renderer

I have tried explicitly setting the matplotlib backend renderer but to no avail. Refer 353, offline.plot is from #378 . The problem seems to be with this.