Re: [whatwg/dom] Add a BoundaryPointsRange mixin (PR #1469)

annevk left a comment (whatwg/dom#1469)

Oh good call. Per https://dontcallmedom.github.io/webdex/a.html#AbstractRange%40%40%40%40interface and in particular https://dontcallmedom.github.io/webdex/c.html#collapsed@@AbstractRange@attribute this would break https://w3c.github.io/editing/docs/execCommand/#effectively-contained. Although arguably that is in violation of the rule that you cannot define an algorithm in terms of public API. cc @zcorpan 

I can create a patch for that tomorrow. I think the observable differences will be covered by the generated IDL tests, but I should also mention that in the eventual commit message for clarity.

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Received on Wednesday, 3 June 2026 17:03:03 UTC