Dear Abu, 1. I did "(main) (go)". 2. Used httpGate as mentioned in "A Minimal Example". This is what I did earlier also. 3. Pointed to localhost NOT localhost:8080. This is again what I did before.
Now its working perfectly. Thanks! 4 I need canvas to plot series of CSV data in real time! Zappel caught my attention by the horns. In the excitement I lost sight of mounting the horse property before trying to steer. 5. Canvas is needed again to plot Graphviz output to show relationships between entities: classes, objects, symbols etc. Regards Alabhya