Subscription not found (using provider.off)

[tino-web]

I'm trying to unsubscribe all listeners for the pending events. The code below is for illustration. The code below is writing all the pending txs to the console but after 3 seconds I get the error: "(node:20268) UnhandledPromiseRejectionWarning: Error: subscription not found" and crashes. I would just expect the listener to stop writing to console. Adding the listener name with provider.listeners() or using provider.removeAllListeners() gives the same error. What is going on here?

const provider = new ethers.providers.WebSocketProvider(ws_provider_rpc);

provider.on('pending', function checkStream(txhash) {
  console.log(txhash);
})

setTimeout(() => provider.off('pending'), 3000)

[ricmoo]

Are you running the latest version of ethers? I believe this should have recently been fixed…

[tino-web]

I'm running Ethers 5.3.1