Render Speed / Web Components

[tigerhawkvok]

Render speed is a bit dependent on Web Components.

1. The Blink engine fully supports web components (Opera/Chrome).
2. Mozilla is working on it, but is having some debates over the implementation, which is leading to a slightly slower polyfill of some aspects. It can be checked out by enabling the dom.webcomponents.enabled preference in about:config (Firefox).
3. IE's new Spartan Engine has shadow dom, custom elements, html imports, and html templates all "under consideration" and need to be polyfilled. The legacy mshtml.dll engine will receive no more updates and will rely on polyfills.
4. Webkit removed the partial implementation before the Blink fork, and is going to re-incorporate it

General status: https://jonrimmer.github.io/are-we-componentized-yet/

Components:

• http://caniuse.com/#search=imports
• http://caniuse.com/#search=template
• http://caniuse.com/#search=custom%20elements
• http://caniuse.com/#search=shadow%20dom