I was able to produce that JSON error by adding set serializer => 'JSON'; to the app package, and then requesting the URI with the Accept header set to 'application/json'.
Could that be the cause of your error?
In reply to Re^3: Why won't my Dancer2 app render any output???
by 1nickt
in thread Why won't my Dancer2 app render any output???
by traveler
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