Use modern DOM methods a bit more (PR 15031 follow-up) #15035
Merged
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Apparently the ESLint rule added in PR #15031 wasn't able to catch all cases that can be converted, which is probably not all that surprising given how some of these call-sites look.
Use
Element.prepend()
to insert nodes before all other ones in the element, rather than usingfirstChild
withinsertBefore
-calls; see https://developer.mozilla.org/en-US/docs/Web/API/Element/prependFix one incorrect
insertBefore
call, in the AnnotationLayer-code.Initially the patch simply changed that to an
Element.before()
-call, however that broke one of the integration-tests. It turns out that theindex
may try to access a non-existent select-child, which triggers undefined behaviour; note the warning in https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#parameters