Missing error details when enrollment URL is invalid

[romanstrobl]

The cause of error is not printed out in case enrollment URL is invalid (invalid protocol, port, etc.).

The error is:

    {
      "id" : "activation-create-error-generic",
      "status" : "ERROR",
      "object" : {
        "stackTrace" : [
          {
            "methodName" : "callServer",
            "fileName" : "AbstractBaseStep.java",
            "lineNumber" : 336,
            "className" : "io.getlime.security.powerauth.lib.cmd.steps.AbstractBaseStep",
            "nativeMethod" : false
          },
          {
            "methodName" : "execute",
            "fileName" : "AbstractBaseStep.java",
            "lineNumber" : 148,
            "className" : "io.getlime.security.powerauth.lib.cmd.steps.AbstractBaseStep",
            "nativeMethod" : false
          },
...

We should provide more details.

[romanstrobl]

The error is also hidden in case of a 302 response.