Thanks, that's great! So if I understand, I have to create a template error page to host the errors? Cheers, Corentin On Thu, Jan 16, 2014 at 4:37 AM, Jeremy Shaw wrote:

Hello,

Happstack uses monad-control. You can use catch from lifted-base to catch the exception. I have attached a simple demo.

You can learn more about monad-control many places including here:

https://www.fpcomplete.com/user/jwiegley/monad-control

- jeremy

On Mon, Jan 13, 2014 at 3:50 PM, Corentin Dupont wrote:

...

Hi Jeremy, all, In Happstack when I throw an error, I obtain a blank page with "server error: my message". How can I decorate this page? I'd like to have it look like the other pages of my website, and a "back to login" link, for example.

Thanks! Corentin

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