fix macos panic dereferencing when passing a []byte version of certificate or key as cert|keyFileOrContents to iris.TLS()
fix macos panic dereferencing when passing a []byte version of certificate or key as cert|keyFileOrContents to iris.TLS()

 if len(certFileOrContents) > 1024 the error returned will be Filename too long and os.IsNotExist(err) will be false

kataras/iris,kataras/gapi,kataras/gapi,kataras/iris,kataras/iris,kataras/iris