Unable to change 'content-type' header of request

[harsh-niyo]

I have written a proxy server using nestjs and express-rest-proxy. I want to change the content-type header of the request. I am using proxyReqOptDecorator to do the same, but it is not updating the header of the request.
Is there something that I'm doing anything incorrectly or is this a bug?

Version - 2.0.0

Code sample:

const proxyMiddleware: ProxyMiddleware =
    app.get<ProxyMiddleware>(ProxyMiddleware);
  app.use(
    configService.get<string>('liquiLoans.path'),
    proxy(configService.get<string>('liquiLoans.baseUrl'), {
      https: true,
      memoizeHost: false,
      limit: 10 * 1024 * 1024,
      proxyReqOptDecorator: (proxyReqOpts, _srcReq) => {
        proxyReqOpts.headers['content-type'] = 'multipart/form-data';
        return proxyReqOpts;
      },
      proxyReqBodyDecorator: proxyMiddleware.bodyDecorator.bind(
        proxyMiddleware,
      ),
      proxyErrorHandler: proxyMiddleware.proxyErrorHandler.bind(
        proxyMiddleware,
      ),
      userResDecorator: proxyMiddleware.responseDecorator.bind(
        proxyMiddleware,
      ),
      proxyReqPathResolver: proxyMiddleware.pathResolver.bind(
        proxyMiddleware,
      ),
      reqAsBuffer: false,
    }),
  );;

[monkpow]

Thanks for the question. I'm looking into this.

[monkpow]

This appear to me to work as expected (at least in the test suite). Can you give more information about what you see when this is not working?

#527