Re: [w3c/webcomponents] CustomElementRegistry.prototype.get() and case sensitivity (#604)

> You should use localName, not tagName.

Yep, my bad. Fixed.

> Calling customElements.define('X-ELEMENT', ~) would throw we because we explicitly disallow uppercase ASCII letters.

Awesome, thank you all for being so quick to respond and sorry for any ignorance on my part. So looks like a bug in Blink then, or should we just continue to be defensive like we are?

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