(Fix) Stopped additional responses from being sent if a limit handler exists

[Benez11]

• The method "closeConnection" attempts to send a second response despite the parsed "limitHandler" function initially executing and sending its own custom response.
• This leads to the error - "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client".
• I have placed a condition for the "closeConnection" method to only be executed if a valid "limitHandler" function is NOT parsed into the options argument.

[richardgirges]

Thank you! I will get this pushed up on the next release shortly.

[mayurpunjabi]

I updated to latest version 1.2.1, but I am still getting "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" after assigning limitHandler. Can someone help?

app.use(fileUpload({ limits: { fileSize: 3 * 1024 * 1024 }, limitHandler: (req, res, next) => res.json({ 'success': false, 'message': 'File size limit has been reached' }) }));

[therealsujitk]

I'm getting this issue too, looks like the next() function is still being called after an abort. @richardgirges is there a fix for this? for now I've fixed this with in my function.

if (res.headersSent) {
  return;
}