protect browse operation with try catch block
protect browse operation with try catch block

huazh/node-opcua,node-opcua/node-opcua,node-opcua/node-opcua,sebgod/node-opcua,jcodling/node-OPC-UA-server,sebgod/node-opcua,Jochen1980/node-opcua,node-opcua/node-opcua,sebgod/node-opcua,vpalacka/node-opcua,ua-ql/node-opcua,rodp82/node-opcua