Connection strings defined in Azure Portal are not picked up

Hi,

I came across the following post which addresses the same issue i am experiencing. I am currently on EPiServer.CMS.Core 8.11.0 but seems like this issue is not fixed or broken again.

http://world.episerver.com/documentation/Release-Notes/ReleaseNote/?releaseNoteId=122518

I have added the appSetting as suggested in my web.config and also configured Azure portal by adding a "EPiServerDB" setting but its still picking up the connection string from my web.config file. 

Is there anything else i need to configure?

Thanks