If you create a custom element in a different document (e.g. `doc = document.implementation.createHTMLDocument()`) by setting `innerHTML` on a container element in that document, then try to `appendChild` the container element to the current document, the custom element is not customized. Note that it is customized if the custom element was created using `doc.createElement()` instead. http://jsbin.com/qaqitem/edit?html,output
Created attachment 296635 [details] Fixes the bug
Comment on attachment 296635 [details] Fixes the bug Clearing flags on attachment: 296635 Committed r209610: <http://trac.webkit.org/changeset/209610>
All reviewed patches have been landed. Closing bug.