Detailed Debug Output in IIS7 and Coldfusion

I setup a new IIS7 site with Coldfusion the other day and found that it didn’t matter what debug settings I set in CF administrator, IIS continued to hand me the standard 505 error page.

That’s perfect for a production site, but I’m still doing dev work here. The fix is — like so many Microsoft fixes — hidden away in IIS7.

  1. Open IIS Manager
  2. Traverse to the site you’re interested in and view the settings home
  3. Open the “Error Pages” option in the IIS group.
  4. On the right Actions menu, click “Edit Feature Settings”
  5. In the popup box, select:
    1. “Detailed Errors for local requests…” if you’re serving from your local machine,
    2. “Detailed errors” if you’re serving from any other machine


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