Thought I’d post to see if anyone else is having this issue. It seems after upgrading to 2017.3 from 2017.2, postData is not being sent over in requests anymore (using .NET 3.5).
I’ve switched back to 2017.2 for now, which as I suspected, still sends postData fine.
I’d love to upgrade Unity, but this is a game breaking issue, so if anyone else has any insight, I’m open to suggestions.
I believe this issue came up earlier, see this thread:
https://discussions.unity.com/t/686963
If it works in an earlier Unity version, you probably found a regression. Could you please submit a bug-report, following the advice given in this document, to allow Unity to fix their software?
Was a bug ever filed for this? I am having the same issue with 2017.3.0f3
It is a known bug. The fix will come out with 2017.3.0p4, if I remember correctly.
Workaround is to replace WWW with UnityWebRequest and set chunkedTransfer property to false.