Should setting outerHTML on child of DocumentFragment throw an Error?

[josepharhar]

Blink and WebKit bugs were opened about this recently:

• https://bugs.chromium.org/p/chromium/issues/detail?id=1403060
• https://bugs.webkit.org/show_bug.cgi?id=249737

Blink and WebKit both throw errors, and Gecko does not.
According to the reporter, the spec says that no error should be thrown but I haven't looked at the spec myself yet.
Any thoughts on which behavior we should converge on?
I see in the WebKit bug that @cdumez worked on this recently. Any thoughts?

const fragment = new DocumentFragment();
fragment.appendChild(document.createElement('div'));
fragment.firstChild.outerHTML = '';

[smaug----]

outerHTML is defined in https://w3c.github.io/DOM-Parsing/#dom-element-outerhtml not in HTML spec.

And yes, setting it should not throw, in case the context object doesn't have a parent, or if parent is document fragment.

[josepharhar]

thanks, ill update blink accordingly