TypeError: Cannot read property 'replace' of undefined

[arloduff]

The problem

The error TypeError: Cannot read property 'replace' of undefined is thrown when contentType is undefined. Seems to be caused by 49358ca

This is problematic for users such as myself, who use Axios, which deliberately strips out a Content-Type header from any request which is not sending data, even if one is provided. See axios/axios#86

Steps to reproduce

Send a request to your mock-api which does not have a Content-Type header. Using Axios, you can send something similar to:

this.axios.get(url), {
  headers: {
    'Content-Type': 'application/json',
    Accept: 'application/json'
  },
  params: {
    // Your parameters here
  }
}).then(result => result.data)

Mocker-api will fail with the error TypeError: Cannot read property 'replace' of undefined because contentType will come out as undefined, even though it was provided.

I understand you may argue that Axios should not be stripping out the Content-Type from the request; however, it's still a good practice for this codebase to check for one before calling replace on a variable which may be undefined.

[jaywcjlove]

@arloduff Upgrade + [email protected]

[arloduff]

Thanks @jaywcjlove !