I am trying to add a mimeType in web.config -> httpCompression -> dynamicTypes.
What i found was that it had no effect and it seems that the section is being ignored.
Adding this element gives no error
<addfail mimeType="someType" invalidAttribute="true" />
But when i change this for example:
<customErrorsssssss mode="Off" />
I get an Internal server error.
What am i missing?