Impossible to access an attribute ("statusPhrase") on a null variable

[soullivaneuh]

On some Guzzle exception, like a connection refused, the response is empty.

It causes this error on the profiler:

Impossible to access an attribute ("statusPhrase") on a null variable.

From this template part:

<span class="response">{{ message.response.statusPhrase }} ({{ message.response.statusCode }})</span>

Related exception:

ConnectException {#2378 ▼
  -request: Request {#2363 ▶}
  -response: null
  -handlerContext: array:28 [▶]
  #message: "cURL error 7: Failed to connect to slack port 80: Connection refused (see http://curl.haxx.se/libcurl/c/libcurl-errors.html)"
  #code: 0
  #file: "/code/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php"
  #line: 186
  -trace: {▶}
}

We should check if the response exists before trying to get any property of it.

[florianpreusner]

Thanks for the fix!
Released new version 5.2.3: https://github.com/8p/GuzzleBundle/releases/tag/v5.2.3