Forwarding to multiple endpoints

[gravyTrainee]

Hello!

I'd like to use this wonderful proxy library to forward a request to multiple different endpoints. My plan is to create an altered-source version of the library and do something like this:

    if(options.forward) {
      var forwards = Array.isArray(options.forward) ? options.forward : [options.forward]; // added this...
      for (var forward of forwards) { // ...and this loop
        // If forward enable, so just pipe the request
        var forwardReq = (options.forward.protocol === 'https:' ? https : http).request(
          common.setupOutgoing(options.ssl || {}, options, req, 'forward')
        );

        // error handler (e.g. ECONNRESET, ECONNREFUSED)
        // Handle errors on incoming request as well as it makes sense to
        var forwardError = createErrorHandler(forwardReq, forward);
        req.on('error', forwardError);
        forwardReq.on('error', forwardError);

        (options.buffer || req).pipe(forwardReq);
      }
      if(!options.target) { return res.end(); }
    }

Questions:

• Is it possible to do this without creating an altered-source version?
• If not, would you accept a pull request?

[gravyTrainee]

Pull request created, #1550