In my tests, that worked as I would hope. I can't figure out how to make a functioning link here in the Github issue so I made a Codepen with the bookmarklet for testing.
I imagine I'm not the only person interested in this approach, so you might consider adding it as an installation method on the editoria11y site and/or in this repo.
Since both tota11y and Sa11y have bookmarklet versions, I was curious if Editoria11y should as well.
I tweaked the Squarespace injector code like this:
Then I ran it through this bookmarklet maker tool to produce this:
In my tests, that worked as I would hope. I can't figure out how to make a functioning link here in the Github issue so I made a Codepen with the bookmarklet for testing.
I imagine I'm not the only person interested in this approach, so you might consider adding it as an installation method on the editoria11y site and/or in this repo.
Thanks for the really great tool!