A list containing some of the observed differences so far in different environments is available in NOTES.md.
This specification is still in its very early stages. It is very much a work in progress.
Tests can be found in the
console/directory of web-platform-tests/wpt.
For guidelines on how to build and edit the spec, see CONTRIBUTING.md.
If you can commit to this repository, see the WHATWG Maintainer Guidelines.
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