cwclientlib #4571309 vid not set when using the rql method [validation pending]

CubicWeb view controller thus returns a HTML response while we expect json

prioritynormal
typebug
done in0.2.1
load0.200
load left0.000
closed by#791a43671ccf [cwproxy] ensure vid is not unset
patch[cwproxy] ensure vid is not unset [applied]