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Prevent server crash on duplicate close event. #1789

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5 changes: 4 additions & 1 deletion lib/websocket.js
Expand Up @@ -827,7 +827,10 @@ function receiverOnPong(data) {
*/
function socketOnClose() {
const websocket = this[kWebSocket];


// Already closed, ignore this close event.
if(!websocket) return;

this.removeListener('close', socketOnClose);
this.removeListener('end', socketOnEnd);

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