NGLView doesn't work with Conda Colab (but does with pip)

[Yoshanuikabundi]

NGLView is a widget for visualizing chemical structures. It works in Colab, but only when installed with pip.

Here's a notebook demonstrating it with pip: https://colab.research.google.com/drive/1D-MD6vpVmz0NMrz8Wf9W-3ZpDJBTaPZ0?usp=sharing

And here's the equivalent notebook with Conda: https://colab.research.google.com/drive/1nHUENuqeSoG-vbY7JoXSDZaoxGViofnX?usp=sharing

I've tried overwriting the conda installation with pip in all sorts of orders, but it seems like once conda is activated the widget won't work. If I leave off the enable_custom_widget_manager() call, on Pip I get a message telling me about it, but on Conda it just silently fails.

In the Conda notebook, I get an error in my JS console:

Error has occurred while trying to update output. Error: not found
    t https://ssl.gstatic.com/colaboratory-static/widgets/colab-cdn-widget-manager/b3e629b1971e1542/manager.min.js:1867

I think this might be an issue for other widgets but I haven't found any yet.

I'm raising this here because it works locally with Conda and in Colab with pip, but if this is expected behavior and NGLView needs a fix I can raise an issue there instead!

Thanks for Conda Colab!