We should not attempt to spell check the contents of nodes which do not have affect rendering (have no associated frame). Examples are display:none elements. See bug 782359 about a case where we attempt to spell check the contents of a script element.
Unassigning bugs from myself per: https://plus.google.com/100662365103380396132/posts/KyADU8K54uK
Assignee: ayg → nobody
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