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IE/Edge WeakMap cannot use cross-window nodes as keys #35

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brianmhunt opened this issue Jul 21, 2017 · 0 comments
Closed

IE/Edge WeakMap cannot use cross-window nodes as keys #35

brianmhunt opened this issue Jul 21, 2017 · 0 comments

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@brianmhunt
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brianmhunt commented Jul 21, 2017 •
edited

Per @mbest's comment here knockout/knockout#2141 (comment)

Workaround:

var data = node.ownerDocument[dataStoreKeyExpandoPropertyName] ||
    (node.ownerDocument[dataStoreKeyExpandoPropertyName] =
        new node.ownerDocument.defaultView.WeakMap());
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