Forward slash in Metadata column label not escaped properly in alpha-rarefaction and alpha-group-significance

[thermokarst]

Screenshots
Metadata column label: Varnish/Soil (mg)

Error:

[Errno 2] No such file or directory: '/tmp/qiime2-temp-3f149i81/faith_pd-Varnish/Soil%20%28mg%29.jsonp'

Comments
Discussed offline with @ebolyen - these issues come up way too often - we probably need to engineer a better solution here. This issue will be updated in the future with more detailed directions and discussion.

References
This recently came up on the forum.

[thermokarst]

This recently came up on the forum.