-e: error console not shown in dev build

-the console is not shown for dev builds of Windows/OSX standalone or webplayer

-repro:
--build Development Build of attached project
--run build
--NOTICE the error console is not shown while it should since an error is thrown (check the player log)

-OR
--set channel to Dev (bottom of the channel list)
--build attached project with Development Build checked for web player
--run project
--NOTICE the error console is not shown while it should since an error is thrown (check the web player log)

-running the same steps/project in 4.2.2 shows the console