There was "onerror" event in RF 3.x for rich:fileUpload component.
I don't see this event in RF 4 and any replacement for it. The "typerejected" event seems not to cover all the possible errors.
Could you please give explanation how to catch and handle errors in rich:fileUpload ?
BTW, the migration guide notes that fileUpload component hasn't changed in RF 4.x
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