Description of problem:
When I open any of the previously modeler processes in latest google chrom (version 34), there are no notes (activities, start nodes, etc) rendered in HTML - only edges are present. See screenshot.

Version-Release number of selected component (if applicable):
BPMS 6.0.2 ER1 + google chrome 34

How reproducible:
Always

Steps to Reproduce:
1. Open any existing process in designer with latest google chrome. For example HR hiring process from jbpm-playground

Actual results:
No process nodes are displayed, only edges are present.

Expected results:
Process should be rendered correctly in canvas.