-e: see title

-repro:
--install 5.0a1 runtime (closed network or channel)
--run https://apps.facebook.com/uberstrike/
--NOTICE it gets stuck loading

This overload is deprecated. Use the one with Dictionary argument.
UnityEngine.Debug:Internal_Log(Int32, String, Object)
UnityEngine.Debug:LogError(Object)
UnityEngine.WWW:.ctor(String, Byte[], Hashtable) (at C:\buildslave\unity\build\artifacts\WebPlayerGenerated\Utils.cs:67)
UberStrike.WebService.Unity.<MakeRequest>d__0:MoveNext()

(Filename: C:/buildslave/unity/build/artifacts/WebPlayerGenerated/Utils.cs Line: 67)