listener sends response everytime when the same listener is attached in a new tab

I have added a listener to get a list of records but this listener sends response everytime when the same listener is attached in a new tab.

Is there any way to stop it?

I used stateChanges() to retrieve records

首先，透過在兩個分頁中附加同一個 listener 並觀察重複回應，使用 stateChanges() 重現此行為。追蹤涉及的 AngularFire/Firebase listener 路徑；當 listener 仍會傳回記錄，且不會傳送不必要的重複回應時，即表示完成。

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