This is probably more of a generic .Net question, however, I thought I would post in here initially as it's an Episerver solution where I'm experiencing the problem.
I cannot enable the familar and developer-friendly "yellow screen of death" in an Episerver 10 solution I'm working on.
I've tried the following:
<httpErrors errorMode="Detailed" existingResponse="Replace" >
And so I'm at the point of desperation where one resorts to posting on a forum at 5.15pm on a Friday ;)
Can anyone think of something I may have missed?
I have one more thing to check.
Have you logged in to Episerver as an admin? If not, then you may try that.
By default admins are allowed to see YSODs, while public users are not.
You can even grant that right to specific users and groups. Here’s how to do that.
Marcus's suggestion should work, or you can simple remove the entire
<httpErrors errorMode="Detailed" existingResponse="Replace" > <clear/> </httpErrors>