All the vulnerabilities related to the version 2.0.7 of the package
http-proxy-middleware can call writeBody twice because "else if" is not used
In http-proxy-middleware before 2.0.8 and 3.x before 3.0.4, writeBody can be called twice because "else if" is not used.
http-proxy-middleware allows fixRequestBody to proceed even if bodyParser has failed
In http-proxy-middleware before 2.0.9 and 3.x before 3.0.5, fixRequestBody proceeds even if bodyParser has failed.