Every request logs header errors in chrome

[voliva]

When using this library, every request to PutLogEvents results in Refused to set unsafe header "Host" or Refused to set unsafe header "Content-Length" being logged in the chrome console.

I couldn't find exactly how are these parameters used, so as a workaround I deleted both of these headers from getRequestParams, on line 36:

delete opts.headers['Host'];
delete opts.headers['Content-Length'];

Maybe it would be better if this can be handled in the place where these headers are set.