17706 2012-07-06 05:13:10 +0000 Node.replaceChild(node, child) doesn't check that child is among node's children 2012-07-06 05:15:52 +0000 1 1 1 Unclassified WebAppsWG DOM unspecified All All RESOLVED INVALID P2 normal --- 1 ajvincent annevk mike www-dom public-webapps-bugzilla oldest_to_newest 69670 0 ajvincent 2012-07-06 05:13:10 +0000 DOM4 Editor's Draft states: To replace a child with node within a parent, run these steps: ... Remove child from its parent with the suppress observers flag set. The problem is child's parent may not be the same parent as the insertion parent. The word "its" in this last sentence makes that possible. 69671 1 ajvincent 2012-07-06 05:15:52 +0000 Sorry, folks, I was reading a different part of my code. This is covered by step 1 in the replaceChild algorithm: If child's parent is not parent, throw a "NotFoundError" exception and terminate these steps.