standard

https://html.spec.whatwg.org/multipage/images.html#updating-the-image-data

step 13:

If urlString is the same as the current request's current URL and current request's state is partially available, then abort the image request for the pending request, queue an element task on the DOM manipulation task source given the img element to restart the animation if restart animation is set, and re

https://fetch.spec.whatwg.org/#concept-request-destination shows the CSP directive for a specific destination. I think that list needs to be updated to Content Security Policy Level 3. For example the destination "script" should now be "script-src-elem". (ref https://w3c.github.io/webappsec-csp/#effective-directive-for-a-request)

Under point 6 of the list of steps to take to "ensure pre-insertion validity", as part of an attempt to implement a procedure involving the particular list of steps, I am having trouble unambiguously interpreting the following statement:

parent has an element child, child is a doctype, or child is non-null and a do