Góðan dag TAG！

I'm requesting a TAG review of:

• Name: JSON modules
• Specification URL: JSON module support whatwg/html#4407
• Explainer, Requirements Doc, or Example code: JSON modules whatwg/html#4315 (comment)
• GitHub issues (if you prefer feedback filed there): JSON modules whatwg/html#4315 JSON "modules" WICG/webcomponents#770
• Tests: Add some initial tests for JSON modules. web-platform-tests/wpt#16734
• Primary contacts: @Ms2ger @littledan @domenic @annevk @dandclark

Further details (optional):

• Relevant time constraints or deadlines: None, but note that there is interest in implementing from Google, Mozilla, and Microsoft.
• [ x ] I have read and filled out the Self-Review Questionnare on Security and Privacy. There are no new security/privacy concerns, as this proposal follows JavaScript modules with respect to the usage of fetch
• [ x ] I have reviewed the TAG's API Design Principles

You should also know that...

[please tell us anything you think is relevant to this review]

We'd prefer the TAG provide feedback as (please select one):

• open issues in our GitHub repo for each point of feedback
• open a single issue in our GitHub repo for the entire review
• [ x ] leave review feedback as a comment in this issue and @-notify @littledan

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