Use axe-core to set up automated accessibility testing

[codeAbul]

I think axe-core( https://github.com/dequelabs/axe-core ) is a lovely little tool we could incorporate into our dev workflow to catch any accessibility violations at the earliest. Would love to hear thoughts on this

[tatianamac]

@ovlb @dengeist I would love to hear your thoughts on this specifically!

[ovlb]

I would be careful to say «any violations» as automatic testing can only find a subset of violations/problems with the accessibility of a site. Besides from nitpicking though, I think it makes sense to build up a testing/linting infrastructure, and axe should be a part of it.

[mxmason]

Agreed! Linting is mainly here to help us catch the low-hanging fruit, but that's fine; getting it in place will allow us to better claim responsibility for the rest of the app's accessibility.

[tatianamac]

Great, thank you, @dengeist and @ovlb . I'm going to add a separate issue that includes "Set up testing/linting infrastructure/workflow."

[codeAbul]

@tatianamac @ovlb @dengeist thanks for the feedback! Yes @ovlb automated accessibility testing is only the first step and definitely a good starting point!

[greatislander]

@tatianamac I think this actually needs to be re-opened as @codeAbul was going to tackle it once the other CI had been set up.

[ovlb]

We #74 to keep track of the single parts, so maybe having this closed gets rid of some duplication.