Issue when removing element in a connectedCallback

[ttoommxx]

I found an unexpected behaviour when deleting an element in a connected callback.

I have my element A, and a connected callback that does removes it and then call another function. Such function then append an element to the (ex) previous sibling of A, and I get an error then (nodeType null)

[WebReflection]

a minimal way/example code to reproduce the issue would surely help, thanks

[ttoommxx]

sorry I can't quite reproduce it as my setup is very complex. Will come back with a reproducible example later on.

In the meanwhile I found that I cannot access the property "getPropertyPriority" of an element style. For reference:
https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleDeclaration/getPropertyPriority

[WebReflection]

it's not implemented and a different issue that shouldn't be discussed in here, imho