Option to use with data-attribute #126
Description
We are using inert in a recent project. It works well and we want to continue to use it.
Our product must deliver valid HTML without errors. It is checked with the W3 validator.
However, the validator doesn't allow to use the inert attribute anywhere, because it isn't part of the spec. As to why was explained in this issue of the HTML spec.
Would it be possible to have the polyfill not only work with [inert]-attribute, but also with a [data-inert]-attribute? That way we can make use of this future-proof feature (and might do a little switch somewhere in the future), but also deliver fully valid HTML.