I've an issue with some users with restricted (read only) access being unable to expand any node, seeing the tree wherever it is rendered, but getting a load failure, try again later message whatever node they try to expand.
I suspect it is an incompatibility with my own extension Extension:NSWhitelist but haven't been able to figure out what, yet.
I've ruled out browser issues, and a user with full rights can use it fine. Can someone tell me what user rights are needed to expand a node? Must you be able to read a particular namespace?