anyproxy Memory leaks issues

Hello! I'm having some memory leaks problems.

This is my code:

const AnyProxy = require('anyproxy');

const options = {
    port: 8001,
    rule: {
        * beforeDealHttpsRequest(requestDetail) { /* ... */
            return true;
        },
    },
    webInterface: {
        enable: false,
        webPort: 8002
    },
    throttle: 10000,
    forceProxyHttps: true,
    wsIntercept: false,
    silent: false
};

const proxyServer = new AnyProxy.ProxyServer(options);

proxyServer.on('ready', () => {
    console.log('ready');
});

proxyServer.on('error', (e) => {
    console.log('error ocurred', e);
});

proxyServer.start();

proxyServer.close();

When i start the server, my memory consumption is about 30MB.

When i make a request behind the proxy like this: curl -i -X POST -H "Content-Type: multipart/form-data" -F "file=@/file" -k -v --insecure --proxy-insecure --proxy http://localhost:8001 "https://website.com"

After request finishes, my memory increases in the same size of the file that i've sent in the request. After tests, the problem seems to happen only in POST requests. GET is fine.

Inspecting the memory dump difference on Chrome's inspection, i see an variable (string) called reqBody[0] with all body request stored on memory.