I need to access the elements and stub few things precisely when they are created (imported) then when stamped (connected).
Actually, I'm trying to test a polyfill for the declarative shadow dom element, according to latest ideas which consist removing the element once parsed.
Expected outcome
I'd love to have an event or callback:
imported - with a NodesList of imported nodes as a detail/parameter, so I could access them even though the may get removed from the document after constructor/connectedCallback/fixture. Called just after content of tempalte is imported.
connected - when the elements are being appended to the main document.
I could provide a PR if that's the idea with any chance to get merged.
Actual outcome
No way to catch those.
Note, that I cannot stub into Custom Elements constructor.
Description
I need to access the elements and stub few things precisely when they are created (imported) then when stamped (connected).
Actually, I'm trying to test a polyfill for the declarative shadow dom element, according to latest ideas which consist removing the element once parsed.
Expected outcome
I'd love to have an event or callback:
imported- with a NodesList of imported nodes as a detail/parameter, so I could access them even though the may get removed from the document afterconstructor/connectedCallback/fixture. Called just after content of tempalte is imported.connected- when the elements are being appended to the main document.I could provide a PR if that's the idea with any chance to get merged.
Actual outcome
No way to catch those.
Note, that I cannot stub into Custom Elements constructor.
Live Demo
Steps to reproduce
Browsers Affected