Re: [w3c/webcomponents] Non-class based example of customElement.define() (#587)

# what's wrong with that?

> Uncaught SyntaxError: Failed to execute 'define' on 'CustomElementRegistry': "ufo" is not a valid custom element name 

https://codepen.io/xgqfrms/pen/MWKrXpe?editors=1111

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Received on Friday, 3 July 2020 09:26:16 UTC