native webkit Shadow and CustomElements polyfill in Chrome Stable

[Simon Last]

I'm having some trouble getting the attachedCallback lifecycle callback to fire in Chrome stable with native Shadow DOM and the CustomElements polyfill.

Example:

http://jsfiddle.net/Gvncu/

Thanks!

Simon

[Daniel Freedman]

I believe that stable Chrome has an older version of attachedCallback named enteredViewCallback. These names changed rather recently in the spec.

For the record, we don't officially support this combination (prefixed SD + CE Polyfill) in Polymer because the prefixed shadowRoot is based on a really old version of the spec.

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[Simon Last]

I see. Do you know what the differences between the old and new specs are?

We are trying this combination because MutationObservers on text nodes on Polymer Platform seem to be broken.