let t=document.createElement('template');
t.innerHTML = "<body></body>"
var E = t.children; // HTMLCollection { length: 0 }
t.innerHTML = "<div></div>";
var E = t.children; // HTMLCollection { 0: div, length: 1 }
the div is getting parsed but not the body, why the body tag isn't getting parsed ?
I'm using Firefox 99.0.1 on windows 10
Template elements are not allowed to contain body elements.
The parsing rules say that when encountering
A start tag whose tag name is "body" … if there is a template element on the stack of open elements, then ignore the token.