[do not merge] Experiments with virtual-list #20
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Experimenting with https://github.com/PolymerLabs/virtual-list
Use
virtualList
instead ofrepeat
to render only the viewable rows.Rendering speed of comments (e.g. http://localhost:8081/item?id=16679354) decreases of ~100ms:
with

repeat
(master):with
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virtualList
: