@domenic @annevk Object.seal(weirdDomObject) throws TypeError. See http://dev.w3.org/2006/webapi/WebIDL/#indexed-and-named-properties … paragraph 5.
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@bz_moz@annevk Cool, I had only seen https://www.w3.org/Bugs/Public/show_bug.cgi?id=22320#c11 … which seemed to imply there was no specified behavior for sealing. -
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