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Component Model Strawman: Isolation
Overview
The isolated components definition is a provide attributed HTML file which is loaded in separate namespace. It is basically a document loaded by an iframe. But it has different way for communicating with the host document.
See also the "Isolation" section on Component_Model_Strawman:_Declarative_Syntax.
Element Registration and HTMLElementProxy
- XXX: define the element name resolution order.
Isolated providing document can register new elements for the host document. But in slightly different way: the lifecycle callbacks including open and close use HTMLElementProxy instead of HTMLElement, that means open should return an instance of HTMLElementProxy and close callback receives it as a parameter.
<head>
<element for="x-comment">
<script>
HTMLElementElement.current.open = function() {
var element = return new HTMLElementProxy();
element.addEventListener("message", ...
return element;
}});
</script>
</element>
</head>