pyramid-cubicweb #5739625 the error handler should be deactivable [resolved]

The default error handler, once set, cannot be overriden, which can be a problem.

A configuration value should allow to deactivate it.

prioritynormal
typebug
done in0.4.1
load left0.000
closed by#50e1fda83837 [bwcompat] Make the error handler optional
patch[bwcompat] Make the error handler optional [applied]