Version of symfony: 2.6.3
Version of cUrl: 7.19.7

If I send a request to an action that throws 416 Exception the curl body is empty.
In ~2.5 version of the symfony there was no such problem.

Because of this problem if you have a test that validates the error page and uses cUrl to parse the DOM- it will get an error "The current node list is empty".

By specs in 416 HTTP error response should have:
Content-Range header.
I compared the response between ~2.5 version and 2.6.3 and found that in 2.6.3 I don't get
Transfer-Encoding: chunked header, maybe this is the reason why response body is empty.