The attached and detached callbacks has been removed in bug 1334043 and bug 1334044, so we don't need to check their validation any more when registering custom element definition.
Attachment #8914766 - Flags: feedback?(jdai)
Attachment #8914766 - Flags: review?(bugs)
Comment on attachment 8914766 [details] [diff] [review] Patch, v1 Welcome back edgar.
Attachment #8914766 - Flags: review?(bugs) → review+
Pushed by email@example.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/367d2b142f03 Remove custom element attached and detached callbacks validation checks; r=smaug
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