feat: shim DOMTokenList for class and part properties on HTMLElement #6522
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Pull Request
📖 Description
This PR adds
classList
,className
, andpart
properties to theHTMLElement
shim for SSR.🎫 Issues
👩💻 Reviewer Notes
The main part of this PR is the introduction of an implementation of
DOMTokenList
which is then plugged intoHTMLElement
where appropriate.📑 Test Plan
Tests for
DOMTokenList
were added. Existing tests continue to pass.✅ Checklist
General
$ yarn change
⏭ Next Steps
Explore whether any other shims are needed to enable foundation components to function out of the box.