there's some useful stuff that pops up if you google 'itemprop' and 'canonical' but the rel-and-itemprop-at-once thing seems to be out of spec https://html.spe

there's some useful stuff that pops up if you google 'itemprop' and 'canonical' but the rel-and-itemprop-at-once thing seems to be out of spec https://html.spec.whatwg.org/multipage/semantics.html#the-link-element:names:-the-itemprop-attribute https://html.spec.whatwg.org/multipage/semantics.html#the-li... Doesn't really help too much with which one is the url to use but the link rel one is more righteous.