[dancer-users] Accepting JSON in a POST request

Andrew Beverley andy at andybev.com
Mon Aug 24 10:37:30 BST 2015

On Mon, 2015-08-24 at 12:10 +0300, Gabor Szabo wrote:
> I have just tried to set
>    set serializer => 'JSON';
> that caused another issue. Now when I return the main page which is plain
> HTML, I get an error
>  Failed to serialize the request: hash- or arrayref expected (not a simple
> scalar, use allow_nonref to allow this)

Ah yes, the auto-serializer's behaviour used to be that it would auto-detect and
act accordingly. That changed in a recent version of Dancer2, full details here:


In short, you need a separate app, one with a serializer and one without.

> Reading the docs you linked to I thought it should just send out the plain
> HTML page as it is a plain scalar.

Looks like the docs need updating...


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