fix window scroll handler leaks#643

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hkhere wants to merge 1 commit into

Open

fix window scroll handler leaks #643
hkhere wants to merge 1 commit into
michalsnik:next from
hkhere:fix-handler-leaks

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The window's scroll handler is not removed when a new scroll handler is to be installed.

This does not only leak handlers but also causes accumulated scroll handlers to be executed every time the scroll event is fired.

remove current scroll handler when a new scroll handler is to be installed


 fix handler leaks

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This can be easily verified using getEventListeners(window) in devtools and examine the scroll property of the output.