document.registerElement很多版本chrome都不可以使用

UI.registerCustomElement = function(localName, typeExtension, prototype) {
return document.registerElement(typeExtension, {prototype: Object.create(prototype), extends: localName});
};

Start at the UI.registerCustomElement function shown in the issue and check the supported browser behavior for document.registerElement. Confirm the affected Chrome versions and identify the compatibility change needed; done means custom-element registration works in those versions and the relevant behavior is verified.

Written by the indexing model from the issue text.