Today I ran into a very interesting issue where my WCF service was not publishing my metadata… but I had the Mex endpoint setup correctly.  When I tried to hit my hosted service in a browser I received the following message

I double checked that my config was indeed correct it was…. I was at a loss for a reason for this.  Then I started to retrace my config changes steps (because this was working only a few minutes prior) and I remembered that I had removed what I thought was an empty config section which did not appear to be needed.

If you look at the config section below I assumed that since there was not a name on the behavior it was not being used so it was not needed.  But I guess I was wrong.

Once I added this back I was able to get my metadata back and test via the browser or the WcfTestClient

I both love WCF and hate WCF at the exact same time…. :)

Till next time,