Not working with Node 10

[Fumler]

Hello. Thank you for creating this package, it has been a big help for us. Been using this (in prod 😅) for a while.

After we updated to Node 10 it stopped working for outgoing requests, the express module still works, but httpClient does not.

  opentracing-auto:instrumentation:httpClient Patched +0ms
  opentracing-auto:instrument Instrumentation "httpClient" applied on module "http" { moduleVersion: undefined, supportedVersions: undefined } +53ms

  opentracing-auto:instrument Instrumentation "express" applied on module "express" { moduleVersion: '4.16.3', supportedVersions: [ '4.x' ] } +127ms
  opentracing-auto:instrumentation:expressError Patched +0ms
  opentracing-auto:instrument Instrumentation "expressError" applied on module "express" { moduleVersion: '4.16.3', supportedVersions: [ '4.x' ] } +1ms

And then when we get incoming requests:

opentracing-auto:cls Root span started +0ms
  opentracing-auto:instrumentation:express Operation started http_server { 'http.url': 'http://localhost:4000/', 'http.method': 'GET' } +33s

But on outgoing requests we get no logs of httpClient doing anything.

Any ideas?