cubicweb #1381205 [js/ajax] undeprecate (async)remoteExec ? [resolved]

These are quite convenient and most of the time there is no (perceived) need to dance the weird ajaxFuncArgs & loadRemote gavotte.

prioritynormal
typetask
done in3.12.6
load0.100
load left0.000
closed by#9948cdd21b36 [js/ajax] undeprecate (async)remoteExec. closes #1381205