Details
{% if e.human %}
In human-speak: {{ e.human }}
{% endif %}In machine-speak:
{% if e.data and e.data.source %}{% if e.message %}{{ e.message }}{% else %}{{ e }}{% endif %}
Here's the link that the HXL Proxy was actually trying to open: {{ e.data.munged }}
Note that you may still be able to read this in your own browser, if you're logged into Google Drive or another cloud service. Test in an incognito/anonymous tab to check for public permissions—if you get a login window, then the resource probably isn't publicly readable.
{% endif %}